Vertical machining center convenient to overhaul and maintain

Abstract

The invention relates to the technical field of machining centers, in particular to a vertical machining center convenient to overhaul and maintain, which comprises a vertical machining body, an equipment box is fixedly connected to the vertical machining body, a rotating mechanism is fixedly connected to the outer wall of one side of the equipment box, and a rotating sleeve is rotatably connected to the outer wall of the rotating mechanism. An access door is fixedly connected to the outer wall of the rotating sleeve, the inner wall of one side of the access door is in movable contact with the outer wall of the front face of the equipment box, a mounting groove is formed in the outer wall of the other side of the equipment box, and a lock catch is slidably connected to the interior of the mounting groove. By pushing the lock catch and pulling the U-shaped plate out of the first fixing groove and the second fixing groove, the access door can be opened, the main shaft in the access door is exposed, the access door is right opposite to the main shaft fixing groove, non-shielding visualization of a target area is achieved, maintenance personnel can rapidly find out oil leakage, bolt loosening or cracks and other problems, and the maintenance efficiency is improved. And missing detection caused by sight dead angles is avoided.

Description

Technical Field

[0001] This invention belongs to the field of machining center technology, specifically relating to a vertical machining center that is easy to inspect and maintain. Background Technology

[0002] Vertical machining centers, designed for ease of maintenance, are CNC machine tools with a vertically mounted spindle. Their design fully considers ease of operation and maintenance, typically employing an open protective structure and modular layout. This makes key components such as the spindle, tool magazine, electrical cabinet, and lubrication system easily accessible. They are also equipped with quick-removable protective covers, automatic centralized lubrication systems, and intelligent fault self-diagnosis functions. Some models have also optimized the disassembly and assembly process of guide rail covers and chip conveyors, thereby significantly reducing downtime for daily inspections, tool changes, and maintenance operations, effectively improving the overall efficiency of the equipment.

[0003] However, traditional devices still have the following problems when in use: Patent application publication number CN218556440U discloses a vertical machining center that is easy to maintain. The center includes a vertical machine tool body, a control component storage compartment, a maintenance and protection door, a first handle, a movable locking block, a protective door, a second handle, an observation hole, a control panel, heat dissipation holes, a support base plate, a sponge pad, a protective soft pad, threaded grooves, and bolts. The control component storage compartment is fixedly installed at one end of the vertical machine tool body. A maintenance and protection door is movably installed at the rear end of the vertical machine tool body. A first handle is fixedly installed inside the front end of the maintenance and protection door, and a movable locking block is movably installed at one end of the maintenance and protection door. A protective door is movably installed at the front end of the vertical machine tool body, and a second handle and an observation hole are fixedly installed inside the front end of the protective door. A control panel is fixedly installed at the front end of the control component storage compartment. The devices inside the control component storage compartment can be pulled out for individual maintenance through the maintenance and protection door.

[0004] In the existing technology, spindle maintenance requires the simultaneous disassembly of motor 21 and spindle assembly, that is, the two must be completely disassembled from the equipment box, resulting in a lengthy maintenance process, extended downtime, and significantly reduced maintenance efficiency and equipment availability. Therefore, we need a vertical machining center that is easy to inspect and maintain to solve the problem of long spindle repair time and shorten the spindle repair time. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a vertical machining center that is easy to inspect and maintain, and has the advantage of shortening the maintenance time of the spindle.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a vertical machining center that is easy to inspect and maintain, comprising a vertical machining body, an equipment box fixedly connected to the vertical machining body, a rotating mechanism fixedly connected to the outer wall of one side of the equipment box, a rotating sleeve rotatably connected to the outer wall of the rotating mechanism, an inspection door fixedly connected to the outer wall of the rotating sleeve, and the inner wall of one side of the inspection door in movable contact with the outer wall of the front of the equipment box.

[0007] Preferably, an installation groove is provided on the outer wall of the other side of the equipment box, and a latch is slidably connected inside the installation groove. A return spring is fixedly connected to one side of the inner wall of the installation groove, and the outer wall of one end of the return spring is fixedly connected to the outer wall of the latch. A fixing groove is provided on the outer wall of the other side of the equipment box, and a fixing groove is provided on the outer wall of one side of the equipment box. A magnetic plate is fixedly connected to the inner wall of the fixing groove, and a magnetic plate is fixedly connected to the inner wall of the fixing groove. A U-shaped plate is movably inserted into the interior of the fixing groove, and the outer wall of one end of the U-shaped plate is movably inserted into the interior of the fixing groove. The outer wall of one side of the U-shaped plate is magnetically connected to the magnetic plate.

[0008] Preferably, a first sliding groove is provided on the upper part of the inner wall of the equipment box, and a second sliding groove is provided on the lower part of the inner wall of the equipment box. A sliding block is slidably connected inside the first sliding groove, and a sliding plate is slidably connected inside the second sliding groove. A fixing plate is screwed to the outer wall of the top of the sliding block, and a motor 21 is screwed to the outer wall of the top of the fixing plate. A main shaft is movably inserted inside the sliding plate.

[0009] Preferably, the output end of the motor 21 is fixedly connected to the upper coupling, the outer wall of the top of the main shaft is fixedly connected to the lower coupling, the outer wall of the bottom of the upper coupling is provided with a square groove, the outer wall of the top of the lower coupling is fixedly connected to a solution shell, the solution shell is provided with a nozzle on both outer walls that are connected, a piston rod is movably inserted into the interior of the solution shell, and the outer wall of the solution shell is movably inserted into the inner wall of the square groove.

[0010] Preferably, a push plate is slidably connected to the inner wall of the solution shell, a sealing ring is fixedly connected to the outer wall of the push plate, the outer wall of the sealing ring is tightly fitted to the inner wall of the solution shell, a push rod is fixedly connected to the outer wall of the top of the push plate, the outer wall of the push rod is movably connected to the interior of the solution shell, and a sealing sleeve is fixedly connected to the outer wall of the bottom of the push plate.

[0011] Preferably, a return spring four is fixedly connected to the outer wall of the bottom of the push plate, a groove is provided on the outer wall of the bottom top of the coupling, the outer wall of the bottom of the return spring four is fixedly connected to the lower part of the groove, the outer wall of the sealing sleeve is slidably connected to the inner part of the coupling, and the outer wall of the sealing sleeve is slidably connected to the inner part of the groove.

[0012] Preferably, the coupling has an internal cavity, a pressure plate two is movably connected inside the cavity, a protrusion block is fixedly connected to the outer wall of the pressure plate two, the outer wall of the protrusion block is slidably connected to the inside of the cavity, and a return spring three is fixedly connected to the outer wall at the bottom of the pressure plate two.

[0013] Preferably, the outer wall of the bottom of the reset spring three is fixedly connected to the lower part of the inner wall of the cavity, the outer wall of the bottom of the pressure plate two is fixedly connected to the push rod two, a cylindrical hole is opened in the lower part of the cavity, the outer wall of the bottom of the pressure plate two is fixedly connected to the push rod two, and the outer wall of the push rod two is in movable contact with the inside of the cylindrical hole.

[0014] Preferably, an mounting sleeve is fixedly connected to the outer wall of the coupling, a sliding rod is slidably connected inside the mounting sleeve, and an L-shaped rod is fixedly connected to the outer wall of one end of the sliding rod.

[0015] Preferably, the inner wall of the L-shaped rod is in movable contact with the outer wall of the coupling, and the inner wall of the L-shaped rod is in movable contact with the outer wall below the coupling.

[0016] Compared with the prior art, the beneficial effects of the present invention are: By pushing the latch and pulling the U-shaped plate out from inside the first and second fixing slots, the inspection door can be opened, exposing the internal spindle. By aligning the inspection door directly with the spindle fixing slot, the target area is visualized without obstruction, which helps maintenance personnel quickly detect problems such as oil leaks, loose bolts, or cracks, avoiding missed inspections due to blind spots. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention.

[0018] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle.

[0019] Figure 3 This is a schematic diagram of the equipment box structure of the present invention.

[0020] Figure 4 This is a schematic diagram of the fixing groove structure of the present invention.

[0021] Figure 5 This is a schematic diagram of the internal structure of the equipment box of the present invention.

[0022] Figure 6 This is a schematic diagram of the slide structure of the present invention.

[0023] Figure 7 This is a schematic diagram of the upper structure of the coupling of the present invention.

[0024] Figure 8These are cross-sectional structural diagrams A1 to A2 of the present invention.

[0025] Figure 9 This is a schematic diagram of the cavity structure of the present invention.

[0026] Figure 10 for Figure 9 Enlarged structural diagram at point B.

[0027] Figure 11 This is a schematic diagram of the square groove structure of the present invention.

[0028] Figure 12 This is a schematic diagram of the push rod structure of the present invention.

[0029] In the diagram: 1. Vertical machining body; 2. Equipment box; 21. Motor; 211. Spindle; 22. Inspection door; 23. Fixing plate; 232. Slide 1; 231. Slide seat; 234. Slide plate; 235. Slide 2; 24. Rotating mechanism; 25. Rotating sleeve; 26. Lock; 27. Return spring 1; 28. Mounting groove; 29. ​​U-shaped plate; 210. Fixing groove 1; 212. Fixing groove 2; 3. Upper coupling; 4. Lower coupling 5. Mounting sleeve; 51. L-shaped rod; 52. Slide rod; 53. Second return spring; 54. First pressure plate; 55. Inclined block; 6. Solution shell; 61. Nozzle; 62. Piston rod; 63. First push rod; 64. Push plate; 65. Sealing ring; 66. Groove; 68. Sealing sleeve; 69. Fourth return spring; 610. Square groove; 7. Second pressure plate; 71. Protrusion; 72. Third return spring; 73. Cavity; 74. Second push rod; 75. Cylindrical hole. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example 1, please refer to Figures 1 to 12This invention provides a technical solution for a vertical machining center that is easy to inspect and maintain: It includes a vertical machining body 1, an equipment box 2 fixedly connected to the vertical machining body 1, a rotating mechanism 24 fixedly connected to the outer wall of one side of the equipment box 2, a rotating sleeve 25 rotatably connected to the outer wall of the rotating mechanism 24, and an inspection door 22 fixedly connected to the outer wall of the rotating sleeve 25. The inner wall of one side of the inspection door 22 is in movable contact with the outer wall of the front of the equipment box 2. An installation groove 28 is provided on the outer wall of the other side of the equipment box 2, and a latch 26 is slidably connected inside the installation groove 28. One side of the inner wall of the installation groove 28... A return spring 27 is fixedly connected to the side. The outer wall of one end of the return spring 27 is fixedly connected to the outer wall of one side of the latch 26. A fixing groove 210 is opened on the outer wall of the other side of the equipment box 2. A fixing groove 212 is opened on the outer wall of one side of the equipment box 2. A magnetic plate 1 is fixedly connected to the inner wall of the fixing groove 210. A magnetic plate 22 is fixedly connected to the inner wall of the fixing groove 212. A U-shaped plate 29 is movably inserted into the inside of the fixing groove 210. The outer wall of one end of the U-shaped plate 29 is movably inserted into the inside of the fixing groove 212. The outer wall of one side of the U-shaped plate 29 is magnetically connected to the magnetic plate 1.

[0032] Fixing the U-shaped plate 29 inside the first fixing groove 210 and the second fixing groove 212 further increases the stability of the U-shaped plate 29 inside the first fixing groove 210 and the second fixing groove 212, preventing the U-shaped plate 29 from detaching from the first fixing groove 210 and the second fixing groove 212 when subjected to vibration, thereby increasing the dynamic stability of the U-shaped plate 29 in the vibration environment. The problem of quick disassembly and anti-vibration locking is solved with a simple structure. By pushing the latch 26 and pulling the U-shaped plate 29 out from inside the fixing groove 1 210 and fixing groove 212, the inspection door 22 can be opened, exposing the main shaft 211 inside. By aligning the inspection door 22 directly with the fixing groove of the main shaft 211, the target area is visualized without obstruction, which helps maintenance personnel to quickly find problems such as oil leaks, loose bolts or cracks, and avoids missed inspections due to blind spots.

[0033] In Embodiment 2, based on Embodiment 1, a sliding groove 232 is provided on the upper part of the inner wall of the equipment box 2, and a sliding groove 235 is provided on the lower part of the inner wall of the equipment box 2. A sliding block 231 is slidably connected inside the sliding groove 232, and a sliding plate 234 is slidably connected inside the sliding groove 235. A fixing plate 23 is screwed to the outer wall of the top of the sliding block 231, and a motor 21 is screwed to the outer wall of the top of the fixing plate 23. A main shaft 211 is movably inserted into the inside of the sliding plate 234.

[0034] By moving the motor 21 and spindle 211 out of the outer wall of the equipment box 2, the spindle 211 can be inspected, making it easier to inspect the spindle 211 without blind spots. When inspecting inside the equipment box 2, only the front of the component can often be seen, while the back and sides are blind spots. Problems such as oil leaks, cracks or looseness are therefore overlooked. This design ensures the thoroughness of the inspection by completely exposing the component and avoids the hidden danger of missed inspections due to obstructed vision.

[0035] In Example 3, based on Example 2, a cavity 73 is provided inside the coupling 3. A pressure plate 7 is movably connected inside the cavity 73. A protrusion 71 is fixedly connected to the outer wall of the pressure plate 7. The outer wall of the protrusion 71 is slidably connected to the inside of the cavity 73. A return spring 72 is fixedly connected to the outer wall of the bottom of the pressure plate 7. The outer wall of the bottom of the return spring 72 is fixedly connected to the lower part of the inner wall of the cavity 73. A push rod 74 is fixedly connected to the outer wall of the bottom of the pressure plate 7. A cylindrical hole 75 is provided at the lower part of the cavity 73. The push rod 74 is fixedly connected to the outer wall of the bottom of the pressure plate 7. The outer wall of the push rod 74 is in movable contact with the inside of the cylindrical hole 75.

[0036] This mechanism utilizes vertical lifting force to avoid off-center loading and impact, ensuring zero damage to the lower coupling 4 and main shaft 211 during disassembly. This is crucial for the high-precision main shaft 211 and motor 21 shaft. Once the journal is damaged, the accuracy of the entire transmission system cannot be guaranteed. The operator can pull out the main shaft 211 as a whole and then directly activate the built-in pre-separation mechanism to easily complete the disassembly of the coupling in a spacious environment outside the equipment. This integrated design significantly shortens maintenance time and reduces the physical strength and experience requirements for maintenance personnel.

[0037] In Example 4, based on Example 3, an mounting sleeve 5 is fixedly connected to the outer wall of the upper coupling 3. A sliding rod 52 is slidably connected inside the mounting sleeve 5. An L-shaped rod 51 is fixedly connected to the outer wall of one end of the sliding rod 52. The inner wall of the L-shaped rod 51 is in movable contact with the outer wall of the upper coupling 3, and the inner wall of the L-shaped rod 51 is in movable contact with the outer wall of the lower coupling 4. The lower 4 of the coupling is supported by the L-shaped rod 51 to prevent it from falling directly to the ground after pre-separation from the upper 3 of the coupling, which would damage the main shaft 211. This physical interception eliminates the risk of secondary damage caused by operational errors or accidental slippage, allowing the operator to focus on disassembly. After complete separation, the main shaft 211 can be removed from the L-shaped rod 51, reducing operational intensity and accidental risks.

[0038] In Example 5, based on Example 4, the output end of the motor 21 is fixedly connected to the upper coupling 3, and the outer wall of the top of the main shaft 211 is fixedly connected to the lower coupling 4. A square groove 610 is formed on the outer wall of the bottom of the upper coupling 3. A solution shell 6 is fixedly connected to the outer wall of the top of the lower coupling 4. A nozzle 61 with two connected outer walls is formed on the solution shell 6. A piston rod 62 is movably inserted into the interior of the solution shell 6. The outer wall of the solution shell 6 is movably inserted into the inner wall of the square groove 610. A push plate 64 is slidably connected to the inner wall of the solution shell 6. A sealing ring 65 is fixedly connected to the outer wall of the push plate 64. The outer wall of 65 is tightly connected to the inner wall of the solution shell 6. The outer wall of the top of the push plate 64 is fixedly connected to the push rod 63. The outer wall of the push rod 63 is movably connected to the interior of the solution shell 6. The outer wall of the bottom of the push plate 64 is fixedly connected to the sealing sleeve 68. The outer wall of the bottom of the push plate 64 is fixedly connected to the return spring 69. The outer wall of the top of the coupling lower 4 is provided with a groove 66. The outer wall of the bottom of the return spring 69 is fixedly connected to the lower part of the groove 66. The outer wall of the sealing sleeve 68 is slidably connected to the interior of the coupling lower 4. The outer wall of the sealing sleeve 68 is slidably connected to the interior of the groove 66.

[0039] The anti-slip agent inside the solution shell 6 is sprayed through the nozzle 61 onto the contact surfaces of the lower coupling 4 and the upper coupling 3, increasing the clamping force between the lower coupling 4 and the upper coupling 3. Through mechanical linkage, the installation action and the coating action are combined into one, ensuring that the anti-slip agent is automatically applied every time the installation is completed. The intervention of the anti-slip agent can fill the micro gaps, prevent direct friction between the metal surfaces, and provide additional frictional resistance. It is crucial to ensure that the torque of the motor 21 can be transmitted to the spindle 211 without loss or slippage, especially under heavy cutting or frequent acceleration and deceleration conditions. Through the tight contact between the sealing sleeve 68 and the round hole, when the return spring 69 is stretched, the sealing sleeve 68 moves upward accordingly, avoiding contact between the sealing sleeve 68 and the internal anti-slip agent of the solution shell 6, so that the return spring 69 always works in a clean environment, fundamentally preventing chemical corrosion, thereby increasing the service life of the return spring 69.

[0040] In Example 6, based on Example 4, a second return spring 53 is fixedly connected inside the mounting sleeve 5. The outer wall of one end of the second return spring 53 is fixedly connected to the outer wall of the other end of the slide rod 52. An inclined block 55 is fixedly connected to the inner wall of one side of the L-shaped rod 51. A pressure plate 54 is slidably connected to the outer wall of the coupling 3. The outer wall of the pressure plate 54 is in contact with the outer wall of the inclined block 55.

[0041] The movement of the inclined block 55 causes the L-shaped rod 51 and the slide rod 52 to slide outward inside the mounting sleeve 5, thereby releasing the L-shaped rod 51 from fixing the lower 4 of the coupling, which allows the main shaft 211 to be separated from the motor 21, improving disassembly efficiency.

[0042] The working principle and usage process of this invention are as follows: During operation, the operator first pushes the latch 26. When the latch 26 slides within the mounting groove 28 under pressure, it compresses the return spring 27. The return spring 27 shortens under this pressure, causing the latch 26 to move away from one side of the U-shaped plate 29, releasing the latch 26 from the U-shaped plate 29. This allows the U-shaped plate 29 to be removed from the fixing grooves 210 and 212. When the latch 26 contacts one side of the U-shaped plate 29, it fixes the U-shaped plate 29 within the fixing grooves 210 and 212, further increasing its stability and preventing it from detaching from these grooves when subjected to vibration. This increases the dynamic stability of the U-shaped plate 29 under vibration, solving the problems of quick disassembly and anti-vibration locking with a simple structure.

[0043] After the latch 26 releases the U-shaped plate 29 from its fixation, the operator can then pull the U-shaped plate 29 by hand to separate it from the magnetic plates 1 and 2 inside the fixing groove 212 and fixing groove 210. This releases the U-shaped plate 29 from the access door 22. The double-layer fixation of the U-shaped plate 29 by the magnetic plates and the latch 26 increases its stability. The addition of the magnetic plates provides a layer of redundant protection; even if the latch 26 is accidentally unlocked under extreme vibration, the magnetic force can still firmly hold the U-shaped plate 29 in place. To prevent the inspection door 22 from suddenly opening and further improve the stability of the U-shaped plate 29, reducing the risk of the inspection door 22 opening accidentally, the inspection door 22 can be opened by pushing the latch 26 and pulling the U-shaped plate 29 out from the inside of the fixing groove 1 210 and fixing groove 212, exposing the internal main shaft 211. By aligning the inspection door 22 directly with the fixing groove of the main shaft 211, the target area is visualized without obstruction, which helps maintenance personnel to quickly find problems such as oil leaks, loose bolts or cracks, and avoids missed inspections due to blind spots.

[0044] After the U-shaped plate 29 restricts the access door 22, the operator can rotate the access door 22. Due to the fixed connection between the access door 22 and the rotating sleeve 25, the rotating sleeve 25 can be rotated after the access door 22 is rotated, thereby opening the access door 22 and exposing the equipment inside the equipment box 2. The rotating door design saves operating steps and avoids the risk of loss or damage after the door panel is removed. For equipment that requires frequent maintenance, it can significantly shorten downtime.

[0045] This invention allows the operator to pull the slide block 231, which slides within the slide groove 232 under force. This movement of the slide block 231 causes the fixed plate 23 and the sliding plate 234 to move, thereby moving the motor 21 and the main shaft 211 out of the equipment housing 2. This facilitates the maintenance of the main shaft 211. Without removing any parts, the motor 21 and the main shaft 211 can be moved out of the outer wall of the equipment housing 2 for maintenance of the main shaft 211. This allows for thorough maintenance of the main shaft 211 without blind spots. When maintaining the main shaft 211 inside the equipment housing 2, only the front of the component is often visible, while the back and sides are in blind spots. Problems such as oil leaks, cracks, or looseness are therefore overlooked. This design, by fully exposing the components, ensures the thoroughness of the maintenance and avoids the risk of missed inspections due to obstructed vision.

[0046] When the main shaft 211 is moved out of the equipment box 2, and it is necessary to remove the main shaft 211 from the motor 21, since the upper coupling 3 and the lower coupling 4 are connected by flanges, the flanges on the upper coupling 3 and the lower coupling 4 are removed, releasing the fixation between the upper coupling 3 and the lower coupling 4. Then, the operator pushes the protrusion 71 by hand. When the protrusion 71 moves downward under force, it pushes the push rod 74, causing the push rod 74 to move vertically downward from the inside of the cylindrical hole 75, pushing the lower coupling 4 and creating a gap between the upper coupling 3 and the lower coupling 4. This achieves pre-separation of the upper coupling 3 and the lower coupling 4, facilitating the later separation of the upper coupling 3 and the lower coupling 4, and avoiding... This design eliminates the need for a long-term connection between the upper coupling (3) and the lower coupling (4). Due to corrosion or fretting wear, the upper and lower coupling halves often become tightly bound together, making it difficult to separate them. This mechanism utilizes vertical lifting force to avoid uneven loading and impact, ensuring zero damage to the lower coupling (4) and the main shaft (211) during disassembly. This is crucial for the high-precision main shaft (211) and motor shaft (21). If the journal is damaged, the accuracy of the entire transmission system cannot be guaranteed. The operator can pull out the main shaft (211) as a whole and then directly activate the built-in pre-separation mechanism to easily disassemble the coupling in a spacious environment outside the equipment. This integrated design significantly shortens maintenance time and reduces the physical strength and experience requirements for maintenance personnel.

[0047] It should be noted that the connection between the upper coupling 3 and the motor 21, and the connection between the lower coupling 4 and the main shaft 211, are standard setups available on the market and will not be elaborated here.

[0048] This invention, through the setting of the L-shaped rod 51, supports the lower coupling 4 when it falls downwards through a gap between the lower coupling 4 and the upper coupling 3, preventing it from falling directly to the ground after pre-separation and causing damage to the main shaft 211. By physically intercepting the shaft, the risk of secondary damage caused by operational errors or accidental slippage is eliminated, allowing the operator to focus on the disassembly work. After complete separation, the main shaft 211 can be removed from the L-shaped rod 51, reducing the intensity of operation and the risk of accidents.

[0049] This invention allows the operator to hold the main shaft 211 with one hand and push the pressure plate 54 downward with the other. Due to the contact between the pressure plate 54 and the inclined block 55, the downward movement of the pressure plate 54 will push the inclined block 55 to move outward. Then, through the movement of the inclined block 55, the L-shaped rod 51 and the sliding rod 52 will slide outward inside the mounting sleeve 5, thereby releasing the L-shaped rod 51 from the lower coupling 4, and the main shaft 211 can be separated from the motor 21, improving disassembly efficiency.

[0050] When the main shaft 211 is reinstalled onto the motor 21, the solution shell 6 on the lower coupling 4 is aligned with the square groove 610 at the bottom of the upper coupling 3. Before the top of the lower coupling 4 contacts the inner wall of the square groove 610, the push rod 63, under the action of the return spring 69, will be higher than the height of the lower coupling 4. When the lower coupling 4 enters the square groove 610, the push rod 63 will first contact the inner wall of the square groove 610. When the lower coupling 4 is pushed upward, the push rod 63 has reached the limit inside the square groove 610. Due to the fixed connection between the push rod 63 and the push plate 64, the push plate 64 moves upward when the lower coupling 4 moves. Since the push rod 63 remains stationary, it can squeeze the anti-slip agent inside the lower coupling 4, thereby spraying the anti-slip agent inside the solution shell 6 onto the contact surface of the lower coupling 4 and the upper coupling 3 through the nozzle 61. This increases the clamping force between the lower coupling 4 and the upper coupling 3. Through mechanical linkage, the installation action and the coating action are combined into one, ensuring that the anti-slip agent is automatically applied every time the installation is completed. The intervention of the anti-slip agent can fill the micro gaps, prevent direct friction between the metal surfaces, and provide additional frictional resistance. This is crucial to ensuring that the torque of the motor 21 can be transmitted to the spindle 211 without loss or slippage, especially under heavy cutting or frequent acceleration and deceleration conditions.

[0051] It should be noted that when separating the upper 3 and lower 4 of the coupling and reinstalling them, the anti-slip agent on the surface needs to be cleaned, and then new anti-slip agent needs to be added to the inside of the solution shell 6.

[0052] The present invention achieves this by ensuring close contact between the sealing sleeve 68 and the circular hole. When the return spring 69 is stretched, the sealing sleeve 68 moves upward accordingly, avoiding contact between the sealing sleeve 68 and the anti-slip agent inside the solution shell 6. This ensures that the return spring 69 always works in a clean environment, fundamentally preventing chemical corrosion and thus increasing the service life of the return spring 69.

[0053] It should be noted that a sealing ring is provided at the point where the sealing sleeve 68 and the solution shell 6 make through contact.

[0054] The present invention pushes the lower coupling 4 downward by push rod 74, so that a gap appears between the upper coupling 3 and the lower coupling 4, which facilitates fine adjustment of the position of the lower coupling 4.

[0055] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vertical machining center that is easy to inspect and maintain, comprising a vertical machining body (1), wherein an equipment box (2) is fixedly connected to the vertical machining body (1), characterized in that: A rotating mechanism (24) is fixedly connected to the outer wall of one side of the equipment box (2). A rotating sleeve (25) is rotatably connected to the outer wall of the rotating mechanism (24). An inspection door (22) is fixedly connected to the outer wall of the rotating sleeve (25). The inner wall of one side of the inspection door (22) is in contact with the outer wall of the front of the equipment box (2).

2. The vertical machining center for easy inspection and maintenance according to claim 1, characterized in that: The outer wall of the other side of the equipment box (2) is provided with an installation groove (28). The inside of the installation groove (28) is slidably connected with a latch (26). One side of the inner wall of the installation groove (28) is fixedly connected with a return spring (27). The outer wall of one end of the return spring (27) is fixedly connected to the outer wall of one side of the latch (26). The outer wall of the other side of the equipment box (2) is provided with a fixing groove (210). The outer wall of one side of the equipment box (2) is provided with a fixing groove (212). The inner wall of the fixing groove (210) is fixedly connected with a magnetic plate. The inner wall of the fixing groove (212) is fixedly connected with a magnetic plate. A U-shaped plate (29) is movably inserted into the inside of the fixing groove (210). The outer wall of one end of the U-shaped plate (29) is movably inserted into the inside of the fixing groove (212). The outer wall of one side of the U-shaped plate (29) is magnetically connected to the magnetic plate.

3. A vertical machining center that is easy to inspect and maintain according to claim 1, characterized in that: The upper part of the inner wall of the equipment box (2) is provided with a sliding groove (232), and the lower part of the inner wall of the equipment box (2) is provided with a sliding groove (235). The sliding groove (232) is slidably connected to a slide block (231), and the sliding groove (235) is slidably connected to a slide plate (234). The top of the slide block (231) is screwed to a fixing plate (23), and the top of the fixing plate (23) is screwed to a motor (21). The slide plate (234) is movably inserted with a main shaft (211).

4. A vertical machining center that is easy to inspect and maintain according to claim 3, characterized in that: The output end of the motor (21) is fixedly connected to the upper coupling (3), the outer wall of the top of the main shaft (211) is fixedly connected to the lower coupling (4), the outer wall of the bottom of the upper coupling (3) is provided with a square groove (610), the outer wall of the top of the lower coupling (4) is fixedly connected to a solution shell (6), the solution shell (6) is provided with a nozzle (61) with the outer walls of both sides connected, the piston rod (62) is movably inserted into the interior of the solution shell (6), and the outer wall of the solution shell (6) is movably inserted into the inner wall of the square groove (610).

5. A vertical machining center that is easy to inspect and maintain according to claim 4, characterized in that: The inner wall of the solution shell (6) is slidably connected to a push plate (64), and the outer wall of the push plate (64) is fixedly connected to a sealing ring (65). The outer wall of the sealing ring (65) is tightly fitted to the inner wall of the solution shell (6). The outer wall of the top of the push plate (64) is fixedly connected to a push rod (63), and the outer wall of the push rod (63) is movably connected to the interior of the solution shell (6). The outer wall of the bottom of the push plate (64) is fixedly connected to a sealing sleeve (68).

6. A vertical machining center that is easy to inspect and maintain according to claim 5, characterized in that: The bottom outer wall of the push plate (64) is fixedly connected to a return spring four (69), the top outer wall of the coupling lower (4) is provided with a groove (66), the bottom outer wall of the return spring four (69) is fixedly connected to the lower part of the groove (66), the outer wall of the sealing sleeve (68) is slidably connected to the inside of the coupling lower (4), and the outer wall of the sealing sleeve (68) is slidably connected to the inside of the groove (66).

7. A vertical machining center that is easy to inspect and maintain according to claim 4, characterized in that: The coupling (3) has a cavity (73) inside, and a pressure plate (7) is movably connected inside the cavity (73). A protrusion (71) is fixedly connected to the outer wall of the pressure plate (7). The outer wall of the protrusion (71) is slidably connected to the inside of the cavity (73). A return spring (72) is fixedly connected to the outer wall at the bottom of the pressure plate (7).

8. A vertical machining center that is easy to inspect and maintain according to claim 7, characterized in that: The outer wall of the bottom of the reset spring three (72) is fixedly connected to the lower part of the inner wall of the cavity (73). The outer wall of the bottom of the pressure plate two (7) is fixedly connected to the push rod two (74). A cylindrical hole (75) is opened in the lower part of the cavity (73). The outer wall of the bottom of the pressure plate two (7) is fixedly connected to the push rod two (74). The outer wall of the push rod two (74) is in active contact with the inside of the cylindrical hole (75).

9. A vertical machining center that is easy to inspect and maintain according to claim 4, characterized in that: An installation sleeve (5) is fixedly connected to the outer wall of the coupling (3), and a slide rod (52) is slidably connected inside the installation sleeve (5). An L-shaped rod (51) is fixedly connected to the outer wall of one end of the slide rod (52).

10. A vertical machining center that is easy to inspect and maintain according to claim 9, characterized in that: The inner wall of the L-shaped rod (51) is in movable contact with the outer wall of the upper (3) of the coupling, and the inner wall of the L-shaped rod (51) is in movable contact with the outer wall of the lower (4) of the coupling.

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