A machine tool tool magazine door

Abstract

This utility model relates to a machine tool tool magazine door, including an outer cover, an oil pump, and a drive device. The outer cover has a tool changing window, and guide rails are fixedly installed at both ends of the tool changing window. Guide bars that cooperate with the guide rails are slidably connected to the guide rails, and the tool magazine door is fixedly connected to the guide bars. Oil passages are opened in the guide rails along the sliding direction of the guide bars. The oil pump is connected to the oil passages through an oil pipe. Oil holes that communicate with the oil passages are opened on the surfaces of the guide rails that slide with the guide bars. A first slot is opened on the guide rail near the opening direction, and a first sealing strip is installed in the first slot. A second slot is opened on the guide bar near the closing direction, and a second sealing strip is installed in the second slot. By setting the first sealing strip on the guide rail near the opening direction and the second sealing strip on the guide bar near the closing direction, a targeted bidirectional sealing structure is formed to jointly prevent the leakage of lubricating oil in the mating surfaces and prevent external iron filings, dust, and other impurities from entering the mating surfaces.

Description

Technical Field

[0001] This utility model relates to the field of automatic tool magazine doors, specifically to a machine tool tool magazine door. Background Technology

[0002] In automated machine tool manufacturing, the tool magazine door, as a key component connecting the tool magazine and the external tool changing mechanism, directly affects tool changing efficiency, equipment reliability, and machining continuity due to the stability of its motion structure. Currently, the mainstream tool magazine door motion guiding structures mainly employ either a roller-and-slide mechanism or a guide rail-and-slider mechanism. While the roller-and-slide mechanism reduces initial sliding friction, metal chips generated during machine tool processing easily fall into the slide rail and are squeezed between the roller and the slide rail wall as the roller rolls, easily causing door jamming and abnormal noises during opening and closing. While the guide rail-and-slider mechanism combines guiding accuracy and load-bearing capacity, the mating surfaces of the slider and guide rail typically rely on simple lip seals or lack a dedicated sealing structure. Metal chips and dust from the machining environment can still easily penetrate through the gap between the slider and guide rail, directly aggravating abrasive wear on the inner wall of the slider and the surface of the guide rail. This leads to a decrease in slider motion accuracy and a significant increase in sliding resistance, causing door jamming during opening and closing. Long-term use can even cause the slider to seize up, interrupting the tool changing process and severely affecting the continuity and stability of machine tool processing. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a machine tool magazine door.

[0004] The objective of this utility model can be achieved through the following technical solution: A machine tool tool magazine door includes an outer cover, an oil pump, and a drive device. The outer cover has a tool changing window, and guide rails are fixedly installed at both ends of the tool changing window. Guide bars that cooperate with the guide rails are slidably connected to the guide rails, and tool magazine doors are fixedly connected to the guide bars. The drive device is used to drive the tool magazine door to slide back and forth along the guide rails to realize the opening and closing action. Oil passages are opened in the guide rails along the sliding direction of the guide bars. The oil pump is connected to the oil passages through an oil pipe. Oil holes that communicate with the oil passages are opened on the surfaces of the guide rails that slide with the guide bars. A first slot is opened on the guide rails near the opening direction, and a first sealing strip is installed in the first slot. A second slot is opened on the guide bars near the closing direction, and a second sealing strip is installed in the second slot.

[0005] Preferably, the drive device includes an electric actuator, and a mounting base for mounting the electric actuator is fixed inside the outer casing, and a bracket connected to the output end of the electric actuator is provided on the tool magazine door.

[0006] Preferably, the side of the tool changing window is provided with a raised edge, and a dustproof strip is installed on the raised edge.

[0007] Preferably, the first sealing strip has an exhaust groove.

[0008] Preferably, a protective cover is installed on the outside of the guide rail at the upper end of the outer cover.

[0009] Preferably, a buffer is provided on the outer cover at the end of the guide bar near the closing direction.

[0010] The beneficial effects of this utility model are: by setting a first sealing strip near the opening direction of the guide rail and a second sealing strip near the closing direction of the guide bar, a targeted bidirectional sealing structure is formed, which together prevents the leakage of lubricating oil in the mating surface, and at the same time prevents external iron filings, dust and other impurities from entering the mating surface. Combined with the lubrication system consisting of an oil pump, oil passage and oil hole, it can provide lubricating oil to the mating surface of the guide rail and the guide bar, ensuring smooth opening and closing of the knife magazine door. Attached Figure Description

[0011] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of a machine tool magazine door according to the present invention.

[0013] Figure 2 This is another structural schematic diagram of a machine tool magazine door according to the present invention.

[0014] Figure 3 This is a schematic diagram of the drive device structure for a machine tool magazine door according to the present invention.

[0015] Figure 4 This is a schematic diagram of the guide rail and guide bar structure of a machine tool magazine door according to the present invention.

[0016] Figure 5 This is a cross-sectional view of the guide rail of a machine tool magazine door according to the present invention.

[0017] Figure 6 This is a schematic diagram of the first sealing strip structure of a machine tool magazine door according to the present invention.

[0018] The labels in the diagram represent: 1. Outer cover; 2. Oil pump; 3. Drive unit; 4. Tool change window; 5. Guide rail; 6. Guide bar; 7. Tool magazine door; 8. Oil passage; 9. Oil hole; 10. First slot; 11. First sealing strip; 12. Second slot; 13. Second sealing strip; 14. Electric actuator; 15. Mounting base; 16. Bracket; 17. Raised edge; 18. Dustproof strip; 19. Exhaust vent; 20. Protective cover; 21. Buffer. Detailed Implementation

[0019] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0020] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0021] The technical solution of this utility model will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] See Figures 1 to 6As shown, the structure of this utility model is as follows: a machine tool tool magazine door, including an outer cover 1, an oil pump 2, and a drive device 3. The outer cover 1 has a tool changing window 4, and guide rails 5 are fixedly installed at both ends of the tool changing window 4. Guide bars 6 that cooperate with the guide rails 5 are slidably connected to the guide rails 5, and a tool magazine door 7 is fixedly connected to the guide bars 6. The drive device 3 is used to drive the tool magazine door 7 to slide back and forth along the guide rails 5 to realize the opening and closing action. An oil passage 8 is provided inside the guide rails 5 along the sliding direction of the guide bars 6. The oil pump 2 is connected to the oil passage 8 through an oil pipe. Oil holes 9 communicating with the oil passage 8 are provided on the surfaces of the guide rails 5 that slide with the guide bars 6. A first slot 10 is provided at one end of the guide rails 5 near the opening direction. The first slot 10 contains… A first sealing strip 11 is provided, and a second slot 12 is provided on the guide bar 6 near the closing direction. A second sealing strip 13 is provided in the second slot 12. Specifically, the outer cover 1 provides a protective frame for the entire tool magazine, and the tool changing window 4 serves as the core channel for tool replacement, meeting the space requirements for automated tool changing operations. The sliding cooperation between the guide rail 5 and the guide bar 6 provides precise guidance for the opening and closing of the tool magazine door 7, ensuring its stable and unbiased movement trajectory. When the oil pump 2 is working, it delivers lubricating oil to the oil passage 8 in the guide rail 5 through the oil pipe. The lubricating oil then permeates evenly through the oil hole 9 to the sliding contact surface between the guide rail 5 and the guide bar 6, which can significantly reduce frictional loss during relative movement and extend the service life of the components. When the tool magazine door 7 is closed, the guide bar 6 moves with the door body in the closing direction, causing the second sealing strip 13 on the guide bar 6 to move away from the first sealing strip 11 on the guide rail 5. At this time, the two sealing strips respectively seal the gap between the opening end of the guide rail 5 and the closing end of the guide bar 6, jointly preventing the leakage of lubricating oil in the mating surface, and preventing external iron filings, dust and other impurities from entering the mating surface. When the tool magazine door 7 is opened, the guide bar 6 moves with the door body in the opening direction, and the second sealing strip 13 and the first sealing strip 11 move closer to each other, continuously forming a bidirectional seal at both ends of the mating surface, ensuring smooth sliding fit. The drive device 3 drives the tool magazine door 7 to slide back and forth along the guide rail 5, realizing the opening and closing of the tool changing window 4.

[0023] like Figure 3 As shown, the drive device 3 includes an electric actuator 14. A mounting base 15 for mounting the electric actuator 14 is fixed inside the outer cover 1. A bracket 16 connected to the output end of the electric actuator 14 is provided on the tool magazine door 7. Specifically, the drive device 3 uses the electric actuator 14 as the power source. Its output force is stable and its stroke is controllable. The mounting base 15 inside the outer cover 1 provides a stable mounting reference for the electric actuator 14, preventing the electric actuator 14 from displacing due to vibration during operation. The bracket 16 on the tool magazine door 7 is rigidly connected to the output end of the electric actuator 14. When the electric actuator 14 is energized and extends or retracts, it directly drives the tool magazine door 7 to slide along the guide rail 5 through the bracket 16. There is no need for a complex transmission structure, and the opening and closing speed and positioning accuracy of the tool magazine door 7 can be precisely controlled.

[0024] like Figure 2As shown, the tool change window 4 has a raised edge 17 on its side, and a dustproof strip 18 is installed on the raised edge 17. Specifically, the raised edge 17 on the side of the tool change window 4 provides a positioning and installation base for the dustproof strip 18. The dustproof strip 18 is made of elastic material. When the tool magazine door 7 is closed, the dustproof strip 18 fits tightly with the edge of the tool magazine door 7, which can prevent external cutting fluid and dust from entering the tool magazine from the edge gap of the tool change window 4.

[0025] like Figure 6 As shown, the first sealing strip 11 is provided with an exhaust groove 19. Specifically, the exhaust groove 19 is used to balance the air pressure during the sealing process. When the tool magazine door 7 is opened and the second sealing strip 13 and the first sealing strip 11 are close to each other, the air between the two sealing strips can be quickly discharged through the exhaust groove 19 to avoid air stagnation and air resistance, which would cause the sealing strips to not fit tightly. At the same time, it reduces the additional resistance caused by air compression when the door is opened, ensuring that the opening action of the tool magazine door 7 is smooth.

[0026] like Figure 1 , Figure 3 As shown, a protective cover 20 is installed on the outer side of the upper guide rail 5 on the outer cover 1. Specifically, the protective cover 20 adopts a shielding structure, which can directly block the cutting fluid splashed, scattered iron filings and dust from falling onto the surface of the guide rail 5 during the machine tool processing, so as to avoid the accumulation of impurities and blockage of the oil passage 8 or oil hole 9 of the guide rail 5. At the same time, it prevents impurities from entering the mating area between the guide rail 5 and the guide bar 6, ensuring the stability of the sliding fit of the guide rail 5 and the normal oil supply of the lubrication system.

[0027] like Figure 1 , Figure 2 As shown, a buffer 21 is provided on the outer cover 1 at the end of the guide bar 6 near the closing direction. Specifically, when the tool magazine door 7 is closed to near the end position, the guide bar 6 contacts the buffer 21. The buffer 21 absorbs the closing impact force of the tool magazine door 7 through its own damping effect, avoiding rigid collision between the tool magazine door 7 and the outer cover 1. This reduces closing noise, reduces structural wear on the tool magazine door 7 and the outer cover 1, extends the service life of the door, and ensures the smoothness of the tool magazine door 7 when it is closed.

[0028] In practical use, when the machine tool tool magazine door needs to be opened, the drive unit 3 starts and outputs reverse power, driving the tool magazine door 7 to slide along the guide rails 5 at both ends of the tool changing window 4 of the outer cover 1 in the opening direction. The guide bar 6, which is fixedly connected to the tool magazine door 7, slides synchronously along the guide rail 5 with the door body. During this process, the guide bar 6 moves in the opening direction, so that the second sealing strip 13 in the second slot 12 on the guide bar 6 and the first sealing strip 11 in the first slot 10 on the guide rail 5 come closer to each other. The two sealing strips continuously form a bidirectional seal on both ends of the sliding mating surface of the guide rail 5 and the guide bar 6, which not only prevents external iron filings, dust and other impurities from entering the mating surface, but also prevents the leakage of lubricating oil remaining in the mating surface. Finally, the tool magazine door 7 slides along the guide rail 5 to the fully open position, exposing the tool changing window 4 to meet the tool changing requirements. When the machine tool magazine door needs to be closed, the drive unit 3 outputs positive power, driving the magazine door 7 to slide along the guide rail 5 in the closing direction. The guide bar 6 slides synchronously along the guide rail 5 with the door body. At this time, the guide bar 6 moves in the closing direction, causing the second sealing strip 13 and the first sealing strip 11 to move away from each other. The two sealing strips respectively form a seal on the gap between the end of the guide rail 5 near the opening direction and the end of the guide bar 6 near the closing direction, further strengthening the anti-leakage and anti-impurity effect of the mating surface until the magazine door 7 is completely closed, blocking and protecting the tool changing window 4. The oil pump 2 starts at preset time intervals. After starting, it delivers lubricating oil through the oil pipe to the oil channel 8 opened in the guide rail 5 along the sliding direction of the guide bar 6. The lubricating oil then penetrates evenly into the sliding mating surface of the guide rail 5 and the guide bar 6 through the oil hole 9 opened in the sliding mating surface of the guide rail 5 and the guide bar 6, so as to reduce friction loss during relative movement.

[0029] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. A machine tool magazine door, characterized in that: The system includes an outer casing (1), an oil pump (2), and a drive unit (3). The outer casing (1) has a tool changing window (4). Guide rails (5) are fixedly installed at both ends of the tool changing window (4). Guide bars (6) that cooperate with the guide rails (5) are slidably connected to the guide rails (5). A tool magazine door (7) is fixedly connected to the guide bars (6). The drive unit (3) is used to drive the tool magazine door (7) to slide back and forth along the guide rails (5) to realize the opening and closing action. The guide rails (5) have openings along the sliding direction of the guide bars (6). There is an oil passage (8), and the oil pump (2) is connected to the oil passage (8) through an oil pipe. The guide rail (5) and the guide bar (6) are provided with oil holes (9) that are connected to the oil passage (8). The guide rail (5) is provided with a first slot (10) at one end near the door opening direction. A first sealing strip (11) is provided in the first slot (10). The guide bar (6) is provided with a second slot (12) at one end near the door closing direction. A second sealing strip (13) is provided in the second slot (12).

2. A machine tool tool magazine door according to claim 1, characterised in that: The drive device (3) includes an electric push rod (14), and a mounting seat (15) for mounting the electric push rod (14) is fixed inside the outer cover (1). A bracket (16) connected to the output end of the electric push rod (14) is provided on the tool magazine door (7).

3. A machine tool tool magazine door according to claim 1, characterised in that: The tool changing window (4) has a raised edge (17) on its side, and a dustproof strip (18) is installed on the raised edge (17).

4. A machine tool tool magazine door according to claim 1, characterised in that: The first sealing strip (11) has an exhaust groove (19).

5. A machine tool tool magazine door according to claim 1 characterised in that: A protective cover (20) is installed on the outside of the guide rail (5) at the upper end of the outer cover (1).

6. A machine tool tool magazine door according to claim 1 characterised in that: A buffer (21) is provided on the outer cover (1) at the end of the guide bar (6) near the closing direction.

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