A numerical control machine tool tool magazine

Abstract

The application relates to the field of machining tools, and discloses a numerical control machine tool tool magazine, which comprises a rack arranged on one of the columns of a machine tool, a plurality of guide chain wheels arranged at the bottom of the rack, a transmission chain collectively sleeved on the guide chain wheels, a claw arranged on the transmission chain, the claw being capable of automatically clamping and releasing tools, a driving motor mounted at the bottom of the rack, and the driving motor being in transmission connection with one of the guide chain wheels; a vertical baffle is fixedly arranged at the periphery of the bottom of the rack, a gap is formed in the side of the vertical baffle facing a main shaft of the machine tool, the gap is used for taking and placing tools, a plurality of automatic telescopic rods are vertically fixed to the rack, a horizontal baffle is detachably fixed to the bottom end of the automatic telescopic rod, an opening matched with the column of the machine tool is formed in the middle of the horizontal baffle, and the horizontal baffle is used for intermittently closing the opening at the bottom of the vertical baffle; the application can block splashed impurities during machining and the adverse effects caused by the splashed impurities.

Description

Technical Field

[0001] This invention relates to the field of machine tools, and more specifically to a tool magazine for CNC machine tools. Background Technology

[0002] The tool magazine is an important component of CNC machine tools, primarily used to store cutting tools and automatically change them during machining. CNC machine tool tool magazines include disc-type and chain-type. Disc-type tool magazines are the most common type in CNC machine tools, mainly consisting of a disc, multiple tool holders, and the cutting tool itself. During machining, the CNC machine tool automatically selects the appropriate tool according to program instructions and retrieves it from the magazine for cutting. It has the advantages of simple structure, high reliability, and low cost, making it suitable for small and medium-sized CNC machine tools. Chain-type tool magazines mainly consist of a chain, sprockets, and tool holders. Driven by the chain, the tool holder slides on the sprocket, and automatically ejects when it reaches the designated position, completing the tool change process. Chain-type tool magazines offer advantages such as fast tool changing speed and high reliability, making them suitable for large CNC machine tools and high-precision machining applications.

[0003] However, existing machine tool magazines still have some defects. For example, some magazines are completely or partially exposed. During machining, impurities generated during the switching of multiple processes can easily splash into the tool holders and chains of the magazine, which can damage the magazine structure over time. On the other hand, there is a lack of targeted cleaning of impurities attached to the tools in the magazine, which affects the machining accuracy of the tools in subsequent use. Summary of the Invention

[0004] The purpose of this invention is to provide a CNC machine tool magazine that solves the problem that some tool magazines are completely or partially exposed, and impurities generated during the switching of multiple processes in machining are prone to splashing into the tool sleeves and chains of the magazine, which can easily damage the tool magazine structure over time. On the other hand, there is a lack of targeted cleaning action for impurities attached to the tools in the tool magazine, which affects the machining accuracy of the tools in subsequent use.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] A CNC machine tool tool magazine includes a frame mounted on one of the machine tool's columns. Multiple guide sprockets are located at the bottom of the frame, and a transmission chain is mounted on each guide sprocket. A chuck is mounted on the transmission chain, capable of automatically gripping and releasing tools. A drive motor is mounted at the bottom of the frame and is connected to one of the guide sprockets. A vertical baffle is fixedly mounted on the periphery of the bottom of the frame. A notch is provided on the side of the vertical baffle facing the machine tool spindle for loading and unloading tools. Multiple automatic telescopic rods are vertically fixed to the frame. A horizontal baffle is detachably fixed to the bottom end of each automatic telescopic rod. An opening adapted to the machine tool column is provided in the middle of the horizontal baffle, which intermittently closes the opening at the bottom of the vertical baffle.

[0007] As a further technical solution, an intermittent closing mechanism is provided at the gap, the intermittent closing mechanism being capable of selectively closing the gap; the intermittent closing mechanism includes:

[0008] The system includes a controller and a laser rangefinder. The laser rangefinder is mounted on the outer wall of the vertical baffle on one side of the notch and is used to measure the distance between the machine tool tool changer arm and the vertical baffle in real time. A displacement groove is provided on the inner wall of the vertical baffle, and a sealing plate is slidably installed on the displacement groove. A linkage component is provided on the horizontal baffle, which can realize the position change of the sealing plate according to the up and down movement of the horizontal baffle. The automatic telescopic rod, the laser rangefinder, and the controller are electrically connected.

[0009] As a further technical solution, the linkage component includes a vertical rod, a wedge block fixedly mounted on the top of the vertical rod, and a bottom end of the vertical rod fixedly mounted on the top surface of the horizontal baffle. A return spring is connected between the sealing plate and the bottom wall of the displacement groove. The inclined surface of the wedge block contacts the edge of the sealing plate. When the bottom end of the horizontal baffle contacts the bottom end of the vertical baffle, the wedge block pushes the sealing plate to overcome the elastic force of the return spring and close the notch. When the horizontal baffle separates from the vertical baffle, the sealing plate opens the notch under the elastic force of the return spring.

[0010] As a further technical solution, a cleaning mechanism is provided inside the vertical baffle, which is used to remove impurities attached to the cutting tool.

[0011] As a further technical solution, the cleaning mechanism includes: brush rollers, wherein there are two sets of brush rollers, the two sets of brush rollers are symmetrically distributed on both sides of the transmission chain, each set of brush rollers has three brush rollers arranged in a triangular pattern, each brush roller is rotatably mounted on the bottom of the frame, and a driven sprocket is fixedly installed on the top of each brush roller, the driven sprocket in the same set and located in the middle is connected to the transmission chain, and the other two driven sprockets mesh with the driven sprocket in the middle.

[0012] As a further technical solution, an oil dripping tank is provided on the top of the frame, an inlet is provided on the top of the oil dripping tank, an oil outlet is provided at the bottom of the oil dripping tank, a gooseneck tube is connected to the oil outlet, the bottom of the gooseneck tube is configured as an inverted Y-shaped structure, the two ends of the bottom of the gooseneck tube are respectively facing the top of the two brush rollers, and an intermittent opening component is provided at the oil outlet.

[0013] As a further technical solution, the intermittent opening component includes a follower plate, one end of which extends out of the oil dripping tank and abuts against the drive motor, and the other end is movably connected to the bottom end of the oil dripping tank. In the initial state, the follower plate covers the top of the oil outlet. When the drive motor is running, the vibration of the drive motor is transmitted to the follower plate, causing the follower plate to vibrate. During the vibration gap of the follower plate, a gap appears between the oil outlet and the follower plate.

[0014] As a further technical solution, a centralized export mechanism is provided on the cross baffle, which is used to collect and export the impurities that fall from the tool magazine.

[0015] The centralized discharge mechanism includes a material collection trough. The horizontal baffle is configured with a high middle and low edge structure. A baffle is provided at the edge of the horizontal baffle. A material collection trough is opened at the angle between the baffle and the horizontal baffle. A discharge trough is opened at the edge of the horizontal baffle away from the machine tool spindle. The discharge trough vertically passes through the horizontal baffle and is connected to the material collection trough.

[0016] A nozzle is provided at the edge of the frame. The nozzle is connected to an external water pump. The water sprayed from the nozzle can enter the collection tank and wash away the impurities in the collection tank.

[0017] A slot is provided in the middle area of ​​the horizontal baffle, and a cylindrical body is slidably and sealed within the slot. The cylindrical body can extend downwards from the bottom of the horizontal baffle. A swinging connecting rod is provided between the bottom of the slot and the discharge chute. The middle part of the swinging connecting rod is hinged to the bottom surface of the horizontal baffle. One end of the swinging connecting rod is provided with a soft plug, which is initially inserted into the discharge chute. The other end of the swinging connecting rod is movably connected to a driven connecting rod. The middle part of the driven connecting rod is hinged to the bottom of the horizontal baffle by a torsion spring. The other end of the driven connecting rod contacts the bottom of the cylindrical body. A flange is provided at the top of the cylindrical body. The inner diameter of the bottom end of the slot is smaller than the outer diameter of the flange at the top of the cylindrical body. A fine hole is opened at the bottom of the cylindrical body. A support spring is provided between the flange of the cylindrical body and the bottom end of the slot.

[0018] The beneficial effects of this invention are:

[0019] (1) By setting up vertical baffles and horizontal baffles together, the tool magazine can always be kept in a closed state during the machine tool processing to avoid processing impurities splashing onto the tool magazine, thereby preventing damage to the tool magazine structure. By installing the integrated tool magazine on the column, the structure is more compact, which can save installation space. In addition, the combination of vertical baffles and horizontal baffles can block splashing impurities from falling into the tool magazine during the processing and prevent the adverse effects caused by them.

[0020] (2) During the tool changing arm's tool changing action, the horizontal baffle moves away from the bottom of the vertical baffle under the extension of the automatic telescopic rod, exposing the tool magazine. On the one hand, this makes it easier for staff to observe the internal tool magazine and provides space for subsequent tool magazine maintenance; on the other hand, it can support tools that accidentally fall during the tool changing process and provide a sufficient height difference so that the fallen tools can directly collide with the well-clamped tools in the tool magazine and cause tool damage.

[0021] (3) By setting up linkage components, on the one hand, the automatic telescopic rod can be used to drive the horizontal baffle to move, thereby achieving the purpose of freely switching the opening or closing of the opening below the vertical baffle; on the other hand, the up and down movement of the horizontal baffle can be used to control the sealing plate to switch the closing and opening states of the notch, so as to achieve the synchronous opening and closing of the opening and notch below the vertical baffle, thereby taking into account the purpose of blocking splashing impurities during processing and reserving space when changing tools. Attached Figure Description

[0022] The invention will now be further described with reference to the accompanying drawings.

[0023] Figure 1 This is a schematic diagram showing the position of the invention on a machine tool;

[0024] Figure 2 This is a schematic diagram of the tool changing operation of the present invention;

[0025] Figure 3 This is a partial structural diagram of the tool magazine in this invention;

[0026] Figure 4 This is a three-dimensional schematic diagram of the present invention;

[0027] Figure 5 A three-dimensional schematic diagram of the intermittent shut-off mechanism;

[0028] Figure 6 This is a schematic diagram of the centralized output mechanism;

[0029] Figure 7 This is a schematic diagram of the arrangement of the triangular brush rollers;

[0030] Figure 8 This is a schematic diagram of the internal structure of the oil dripping tank;

[0031] Figure 9 for Figure 6 A schematic diagram of another embodiment;

[0032] Figure 10 for Figure 9 Enlarged diagram of point A in the middle.

[0033] Attached Figure Descriptions: 1. Frame; 2. Column; 3. Guide sprocket; 4. Drive chain; 5. Claw; 6. Drive motor; 7. Vertical baffle; 8. Notch; 9. Automatic telescopic rod; 10. Horizontal baffle; 11. Intermittent closing mechanism; 111. Laser rangefinder; 112. Displacement groove; 113. Sealing plate; 114. Linkage assembly; 1141. Column; 1142. Inclined block; 1143. Return spring; 12. Clearing mechanism ; 121. Brush roller; 122. Driven sprocket; 123. Oil drip tank; 124. Oil outlet; 125. Gooseneck tube; 126. Follower plate; 13. Centralized discharge mechanism; 131. Collection trough; 132. Stop; 133. Discharge trough; 134. Nozzle; 14. Groove opening; 15. Cylinder; 16. Swinging linkage; 17. Soft plug; 18. Driven linkage; 19. Flanged edge; 20. Fine hole; 21. Support spring. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on 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.

[0035] Please see Figures 1-10 As shown, the present invention is a CNC machine tool tool magazine, including a frame 1, which is mounted on one of the machine tool columns 2. Multiple guide sprockets 3 are provided at the bottom of the frame 1, and a transmission chain 4 is mounted on the guide sprockets 3. A chuck 5 is provided on the transmission chain 4, which can automatically clamp and release tools. A drive motor 6 is installed at the bottom of the frame 1, and the drive motor 6 is connected to one of the guide sprockets 3. A vertical baffle 7 is fixedly provided on the periphery of the bottom of the frame 1. The vertical baffle 7 has a notch 8 on the side facing the machine tool spindle for loading and unloading tools. Multiple automatic telescopic rods 9 are vertically fixed to the frame 1. A horizontal baffle 10 is detachably fixed to the bottom end of each automatic telescopic rod 9. The horizontal baffle 10 has an opening in the middle that matches the machine tool column 2, and the horizontal baffle 10 is used to intermittently close the opening at the bottom of the vertical baffle 7.

[0036] In this embodiment, by setting the vertical baffle 7 and the horizontal baffle 10 together, the tool magazine can always be kept in a closed state during the machine tool processing to avoid processing impurities splashing onto the tool magazine, thereby preventing damage to the tool magazine structure. Specifically, when the machine tool needs to change tools, the machine tool spindle box moves to the predetermined tool changing position, and then the tool changing arm of the machine tool moves to the left to clamp the tool on the spindle. The spindle box moves up to release the tool, and the tool changing arm continues to move to the left until the tool is pressed into the corresponding chuck 5 of the tool magazine. The tool changing arm moves to the right and releases the tool. The drive motor 6 rotates to drive the guide sprocket 3 to rotate, and the transmission chain 4 drives the tool to move to the notch 8. At this time, the tool changing arm moves to the left to clamp the tool, the chuck 5 releases the tool, the tool changing arm moves to the right to the spindle position, the spindle box moves down to clamp the tool, and the tool changing arm moves to the right to the standby position after releasing the tool, thereby realizing the entire tool changing process.

[0037] During the tool changing arm's tool changing action, the horizontal baffle 10 moves away from the bottom surface of the vertical baffle 7 under the extension of the automatic telescopic rod 9, exposing the tool magazine. This allows the staff to observe the internal tool magazine and provides space for subsequent tool magazine maintenance. On the other hand, it can support tools that accidentally fall during the tool changing process and provide a sufficient height difference so that the falling tools do not collide directly with the properly clamped tools in the tool magazine, thus preventing tool damage.

[0038] This invention makes the structure more compact by installing the integrated tool magazine on the column 2, which can save installation space. Furthermore, the cooperation between the vertical baffle 7 and the horizontal baffle 10 can prevent splashing impurities from falling into the tool magazine during the processing and the adverse effects they may cause. It should be noted that the chuck 5 and the tool changing arm are existing technologies and are conventional choices for those skilled in the art, and will not be described in detail here.

[0039] As a further technical solution, an intermittent closing mechanism 11 is provided at the notch 8, the intermittent closing mechanism 11 being capable of selectively closing the notch 8; the intermittent closing mechanism 11 includes:

[0040] The controller and laser rangefinder 111 are provided. The laser rangefinder 111 is installed on the outer wall of the vertical baffle 7 on one side of the notch 8 and is used to measure the distance between the tool changer arm of the machine tool and the vertical baffle 7 in real time. The inner wall of the vertical baffle 7 is provided with a displacement groove 112, and a sealing plate 113 is slidably installed on the displacement groove 112. The horizontal baffle 10 is provided with a linkage component 114. The linkage component 114 can realize the position change of the sealing plate 113 according to the up and down movement of the horizontal baffle 10. The automatic telescopic rod 9, the laser rangefinder 111 and the controller are electrically connected.

[0041] As a further technical solution, the linkage component 114 includes a vertical rod 1141, with a wedge 1142 fixedly disposed on the top of the vertical rod 1141 and the bottom end of the vertical rod 1141 fixedly disposed on the top surface of the horizontal baffle 10. A return spring 1143 is connected between the sealing plate 113 and the bottom wall of the displacement groove 112. The inclined surface of the wedge 1142 contacts the edge of the sealing plate 113. When the horizontal baffle 10 contacts the bottom end of the vertical baffle 7, the wedge 1142 pushes the sealing plate 113 to overcome the elastic force of the return spring 1143 and close the notch 8. When the horizontal baffle 10 separates from the vertical baffle 7, the sealing plate 113 opens the notch 8 under the elastic force of the return spring 1143.

[0042] In this embodiment, a protective loophole that can prevent the notch 8 is provided, maximizing the isolation between the tool magazine and the machining area. Specifically, during normal machining, the distance between the tool changer arm and the vertical baffle 7 does not reach the set value, so the automatic telescopic rod 9 is in a retracted state, and the horizontal baffle 10 remains in contact with the bottom surface of the vertical baffle 7. Since the horizontal baffle 10 is at its highest position, the inclined block 1142 on the upright rod 1141 is also at its highest position, thereby pushing the sealing plate 113 to close the notch 8. When a tool change is required, the distance between the tool changer arm and the vertical baffle 7 is less than the set value, so the automatic telescopic rod 9 extends and drives the horizontal baffle 10 away from the bottom surface of the vertical baffle 7, and the upright rod 1141 and As the inclined block 1142 moves downward with the horizontal baffle 10, the sealing plate 113, losing the inclined surface push of the inclined block 1142, resets under the elastic force of the return spring 1143, thus exposing the entire notch 8, allowing the tool changing arm to perform the tool changing task normally. By setting the linkage component 114, this invention can, on the one hand, use the automatic telescopic rod 9 to drive the horizontal baffle 10 to move, thereby achieving the purpose of freely switching between opening or closing the opening below the vertical baffle 7; on the other hand, it can use the up and down movement of the horizontal baffle 10 to control the sealing plate 113 to switch between the closed and open states of the notch 8, achieving the synchronous opening and closing of the opening below the vertical baffle 7 and the notch 8, thereby also taking into account the purpose of blocking splashing impurities during processing and reserving space during tool changing.

[0043] As a further technical solution, a cleaning mechanism 12 is provided inside the vertical baffle 7. The cleaning mechanism 12 is used to remove impurities attached to the cutting tools. In this embodiment, the cleaning mechanism 12 can clean the cutting tools entering the tool magazine in a timely manner, preventing the attached impurities from damaging the tool magazine structure. At the same time, it can allow the impurities to fall onto the horizontal baffle 10, and shake them off as the horizontal baffle 10 moves up and down, thus achieving the function of automatic material discharge, achieving multiple benefits in one go.

[0044] As a further technical solution, the cleaning mechanism 12 includes: brush rollers 121, and two sets of brush rollers 121 are provided. The two sets of brush rollers 121 are symmetrically distributed on both sides of the transmission chain 4. Each set of brush rollers 121 has three brush rollers arranged in a triangular pattern. Each brush roller 121 is rotatably mounted on the bottom of the frame 1. A passive sprocket 122 is fixedly provided on the top of each brush roller 121. The passive sprocket 122 in the same set and located in the middle is connected to the transmission chain 4. The other two passive sprockets 122 are engaged with the passive sprocket 122 in the middle.

[0045] In this embodiment, a specific implementation of the cleaning mechanism 12 is provided. During the tool change process, the passive sprocket 122 and the transmission chain 4 are used to rotate the passive sprocket 122 located in the middle, and synchronously drive the passive sprockets 122 on both sides to rotate. Thus, the three brush rollers 121 in a triangular shape are all in a rotating state. The brush rollers 121 in the rotating state can actively rub and clean when they encounter the clamped tool, thereby achieving a better effect of removing impurities. At the same time, the arrangement of two sets of symmetrical brush rollers 121 can ensure that newly clamped tools can be cleaned. The normal movement of the transmission chain 4 drives the brush rollers 121 to move, eliminating the need for additional drive components and reducing costs.

[0046] As a further technical solution, the top of the frame 1 is provided with an oil dripping tank 123, the top of the oil dripping tank 123 is provided with an inlet, the bottom of the oil dripping tank 123 is provided with an oil outlet 124, the oil outlet 124 is connected to a gooseneck tube 125, the bottom of the gooseneck tube 125 is provided with an inverted Y-shaped structure, the two ends of the bottom of the gooseneck tube 125 are respectively facing the top of the two brush rollers 121, and the oil outlet 124 is provided with an intermittent opening component.

[0047] The intermittent opening component includes a follower plate 126. One end of the follower plate 126 extends out of the oil dripping tank 123 and abuts against the drive motor 6, while the other end is movably connected to the bottom end of the oil dripping tank 123. In the initial state, the follower plate 126 covers the top of the oil outlet 124. When the drive motor 6 is running, the vibration of the drive motor 6 is transmitted to the follower plate 126, causing the follower plate 126 to vibrate. During the vibration interval of the follower plate 126, a gap appears between the oil outlet 124 and the follower plate 126.

[0048] In this embodiment, when the tool magazine is running, the drive motor 6 is in operation. The vibration of the drive motor 6 can be transmitted to the follower plate 126, causing the follower plate 126 to vibrate. During the vibration gap of the follower plate 126, a gap appears between the oil outlet 124 and the follower plate 126, so the solution in the dripping tank 123 can flow out intermittently and then overflow from the inverted Y-shaped gooseneck tube 125 onto the two brush rollers 121. Depending on the type of solution in the dripping tank 123, it can be selected as a lubricating liquid. The lubricating liquid can be applied to the brush rollers 121. The rotating coating of the brush roller 121 lubricates the cutting tools and the transmission chain 4. The cleaning fluid can be selected and can clean the surface of the cutting tools under the rotation of the brush roller 121. The impurities dripping from the brush roller 121 and the transmission chain 4 will fall onto the cross baffle 10 for centralized treatment. By setting the intermittent opening component, the present invention can utilize the vibration of the drive motor 6 during operation to achieve intermittent liquid output, so as to achieve the purpose of dripping liquid only when the tool magazine is working. On the other hand, intermittent liquid output can obviously save the use of solution and improve the utilization rate of solution.

[0049] As a further technical solution, a centralized discharge mechanism 13 is provided on the horizontal baffle 10. The centralized discharge mechanism 13 is used to collect and discharge the impurities that fall from the tool magazine.

[0050] The centralized discharge mechanism 13 includes a material collection trough 131. The horizontal baffle 10 is configured with a high middle and low edge structure. A stop 132 is provided at the edge of the horizontal baffle 10. The material collection trough 131 is formed at the angle between the stop 132 and the horizontal baffle 10. A discharge trough 133 is formed at the edge of the horizontal baffle 10 away from the machine tool spindle. The discharge trough 133 vertically passes through the horizontal baffle 10 and communicates with the material collection trough 131.

[0051] A nozzle 134 is provided at the edge of the frame 1. The nozzle 134 is connected to an external water pump. The water sprayed from the nozzle 134 can enter the collection tank 131 and be flushed with the impurities in the collection tank 131.

[0052] In this embodiment, the baffle 132 can prevent the tool from accidentally falling off the horizontal baffle 10, thus preventing the danger caused by the tool falling off the horizontal baffle 10. At the same time, the collection trough 131 is used to collect the impurities falling from above. As the solution dripping from above accumulates, it gradually concentrates and is discharged into the discharge trough 133. The discharge trough 133 can be set to a low position, and other parts can be set to a high position. The height difference allows the impurities in the collection trough 131 to automatically concentrate into the discharge trough 133, so as to achieve a self-cleaning effect. When there are too many impurities at the angle between the baffle 132 and the edge of the horizontal baffle 10, water can be sprayed onto the horizontal baffle 10 using the nozzle 134. The flow of water will drive the impurities out of the discharge trough 133, achieving a thorough cleaning effect. The horizontal baffle 10 structure, which is high in the middle and low at the edges, allows the impurities to automatically flow to the collection trough 131 at the edge under their own weight when they fall, thus eliminating the need for a concentration action during cleaning.

[0053] Furthermore, a slot 14 is provided in the middle area of ​​the horizontal baffle 10, and a cylindrical body 15 is slidably and sealingly connected within the slot 14. The cylindrical body 15 can extend downwards out of the bottom of the horizontal baffle 10. A swinging connecting rod 16 is provided between the bottom of the slot 14 and the discharge trough 133. The middle part of the swinging connecting rod 16 is hinged to the bottom surface of the horizontal baffle 10. A soft plug 17 is provided at one end of the swinging connecting rod 16. The soft plug 17 is initially inserted into the discharge trough 133. The other end of the swing link 16 is movably connected to the driven link 18. The middle part of the driven link 18 is hinged to the bottom of the horizontal baffle 10 by a torsion spring. The other end of the driven link 18 is in contact with the bottom of the cylinder 15. The top of the cylinder 15 is provided with a flange 19. The inner diameter of the bottom end of the slot 14 is smaller than the outer diameter of the flange 19 at the top of the cylinder 15. The bottom of the cylinder 15 is provided with a fine hole 20. A support spring 21 is provided between the flange 19 of the cylinder 15 and the bottom end of the slot 14.

[0054] To address the issue of impurities remaining after water is discharged from the discharge trough 133 without being flushed from the higher parts of the horizontal baffle 10 when spraying water into the collection trough 131 from the nozzle 134, a soft plug 17 is incorporated into this invention. The torsion of the torsion spring in the initial state causes the swinging connecting rod 16 to push the soft plug 17 to seal the discharge trough 133. When a sufficient amount of solution or water accumulates in the collection trough 131, the liquid level spreads to the central opening 14 and gradually flows into the cylinder 15. As the amount of water in the cylinder 15 increases, its weight gradually overcomes the torsion of the torsion spring and moves downwards until it reaches the bottom of the opening 14. At this point, the cylinder 15 compresses the driven connecting rod 18 at the bottom, which in turn moves the swinging connecting rod 16 downwards, forcibly disengaging the soft plug 17 from the discharge trough 133. The discharge trough 133 is then unobstructed. The flow of water carries impurities out of the discharge trough 133. On the one hand, it can make full use of the nozzle 134 to spray water and wash the impurities in the horizontal baffle 10, so as to thoroughly clean the impurities on the surface of the horizontal baffle 10. On the other hand, after the liquid level reaches a certain level, the soft plug 17 can be opened by the gravity of the water filling the cylinder 15 and the lever action of the connecting rod, so as to ensure the smooth flow of the discharge trough 133. The impurities are more mobile in the water, making it easier to achieve the discharge action. It can also ensure that there is enough water to mix with impurities so that they can be discharged, achieving thorough discharge. It should be noted that after the discharge is completed, the water in the cylinder 15 gradually flows out from the fine hole 20 and returns to the top under the action of the support spring 21. When the water rushes into the cylinder 15, the speed of the rushing water is much greater than the speed of the water discharged from the fine hole 20. Therefore, the cylinder 15 can complete the downward movement under the increased weight of the water.

[0055] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A tool magazine for a CNC machine tool, comprising a frame (1), characterized in that: The frame (1) is mounted on one of the columns (2) of the machine tool. Multiple guide sprockets (3) are provided at the bottom of the frame (1). The multiple guide sprockets (3) are together fitted with a transmission chain (4). The transmission chain (4) is provided with a chuck (5). The chuck (5) can automatically clamp and release the cutting tool. A drive motor (6) is installed at the bottom of the frame (1). The drive motor (6) is connected to one of the guide sprockets (3) in a transmission connection. A vertical baffle (7) is fixedly installed on the periphery of the bottom of the frame (1). The vertical baffle (7) has a notch (8) on the side facing the machine tool spindle. The notch (8) is used to pick up and put away the tool. The frame (1) is vertically fixed with multiple automatic telescopic rods (9). A horizontal baffle (10) is detachably fixed at the bottom of the automatic telescopic rod (9). The horizontal baffle (10) has an opening in the middle that is adapted to the column (2). The horizontal baffle (10) is used to intermittently close the opening at the bottom of the vertical baffle (7). An intermittent closing mechanism (11) is provided at the notch (8). The intermittent closing mechanism (11) can selectively close the notch (8). The intermittent closing mechanism (11) includes: The controller and laser rangefinder (111) are provided. The laser rangefinder (111) is set on the outer wall of the vertical baffle (7) on one side of the notch (8) and is used to measure the distance between the tool changer arm of the machine tool and the vertical baffle (7) in real time. The inner wall of the vertical baffle (7) is provided with a displacement groove (112). A sealing plate (113) is slidably installed on the displacement groove (112). A linkage component (114) is provided on the horizontal baffle (10). The linkage component (114) can realize the position change of the sealing plate (113) according to the up and down movement of the horizontal baffle (10). The automatic telescopic rod (9), the laser rangefinder (111) and the controller are electrically connected. The linkage component (114) includes a vertical rod (19) and a vertical rod (112). 141), the top of the upright (1141) is fixedly provided with an inclined block (1142), the bottom end of the upright (1141) is fixedly provided on the top surface of the horizontal baffle (10), the sealing plate (113) is connected to the bottom wall of the displacement groove (112) with a return spring (1143), the inclined surface of the inclined block (1142) is in contact with the edge of the sealing plate (113); when the horizontal baffle (10) is in contact with the bottom end of the vertical baffle (7), the inclined block (1142) pushes the sealing plate (113) to overcome the elastic force of the return spring (1143) to close the notch (8), when the horizontal baffle (10) is separated from the vertical baffle (7), the sealing plate (113) opens the notch (8) under the elastic force of the return spring (1143).

2. The CNC machine tool magazine according to claim 1, characterized in that, The vertical baffle (7) is provided with a cleaning mechanism (12) for removing impurities attached to the cutting tool.

3. The CNC machine tool magazine according to claim 2, characterized in that, The cleaning mechanism (12) includes: brush rollers (121), and there are two sets of brush rollers (121). The two sets of brush rollers (121) are symmetrically distributed on both sides of the transmission chain (4). Each set of brush rollers (121) has three brush rollers arranged in a triangular pattern. Each brush roller (121) is rotatably mounted on the bottom of the frame (1). A passive sprocket (122) is fixedly provided on the top of each brush roller (121). The passive sprocket (122) in the same set and located in the middle is connected to the transmission chain (4). The other two passive sprockets (122) mesh with the passive sprocket (122) in the middle.

4. The CNC machine tool magazine according to claim 3, characterized in that, The top of the frame (1) is provided with an oil dripping tank (123), the top of the oil dripping tank (123) is provided with an inlet, the bottom of the oil dripping tank (123) is provided with an oil outlet (124), the oil outlet (124) is connected to a gooseneck tube (125), the bottom of the gooseneck tube (125) is provided with an inverted Y-shaped structure, the two ends of the bottom of the gooseneck tube (125) are respectively facing the top of the two brush rollers (121), and the oil outlet (124) is provided with an intermittent opening component.

5. The CNC machine tool magazine according to claim 4, characterized in that, The intermittent opening component includes a follower plate (126), one end of which extends out of the drip tank (123) and abuts against the drive motor (6), and the other end is movably connected to the bottom of the drip tank (123). In the initial state, the follower plate (126) covers the top of the oil outlet (124). When the drive motor (6) is running, the vibration of the drive motor (6) is transmitted to the follower plate (126), causing the follower plate (126) to vibrate. During the vibration gap of the follower plate (126), a gap appears between the oil outlet (124) and the follower plate (126).

6. The CNC machine tool magazine according to claim 1, characterized in that, The horizontal baffle (10) is provided with a centralized discharge mechanism (13), which is used to collect and discharge the impurities that fall from the tool magazine; The centralized discharge mechanism (13) includes a material collection trough (131). The horizontal baffle (10) is configured with a high middle and low edge structure. A stop (132) is provided at the edge of the horizontal baffle (10). The material collection trough (131) is opened at the angle between the stop (132) and the horizontal baffle (10). A discharge trough (133) is opened at the edge of the horizontal baffle (10) away from the machine tool spindle. The discharge trough (133) vertically passes through the horizontal baffle (10) and communicates with the material collection trough (131). A nozzle (134) is provided at the edge of the frame (1). The nozzle (134) is connected to an external water pump. The water sprayed from the nozzle (134) can enter the collection tank (131) and be flushed with the impurities in the collection tank (131).

7. The CNC machine tool magazine according to claim 6, characterized in that, A slot (14) is provided in the middle area of ​​the horizontal baffle (10). A cylinder (15) is slidably and sealed inside the slot (14). The cylinder (15) can extend downwards out of the bottom of the horizontal baffle (10). A swing link (16) is provided between the bottom of the slot (14) and the discharge chute (133). The middle part of the swing link (16) is hinged to the bottom surface of the horizontal baffle (10). A soft plug (17) is provided at one end of the swing link (16). The soft plug (17) is inserted into the discharge chute (133) in the initial state. (16) is movably connected to the driven link (18). The middle part of the driven link (18) is hinged to the bottom of the horizontal baffle (10) by a torsion spring. The other end of the driven link (18) is in contact with the bottom of the cylinder (15). The top of the cylinder (15) is provided with a flange (19). The inner diameter of the bottom end of the slot (14) is smaller than the outer diameter of the flange (19) at the top of the cylinder (15). The bottom of the cylinder (15) is provided with a fine hole (20). A support spring (21) is provided between the flange (19) of the cylinder (15) and the bottom end of the slot (14).

Images