Rotary tool magazine mechanism

Abstract

The invention belongs to the technical field of tool magazines, and particularly relates to a rotary tool magazine mechanism which comprises a box body, two driving shafts are rotationally connected to the back face of the box body, chain wheels fixedly sleeve the two driving shafts respectively, a chain is connected between the two chain wheels jointly, a plurality of tool sleeves used for loading tools are installed on the chain, and a first motor is fixedly connected to the rear end of the box body. A first gear is installed on an output shaft of the first motor, a second gear is installed on the driving shaft adjacent to the first motor, the first gear and the second gear are connected in a meshed mode, a cutter cleaning mechanism is arranged in the box body, and a cutter taking mechanism is arranged on the box body. According to the device, an output shaft of a first motor drives a first gear to rotate, then the first gear enables a chain wheel to rotate around a driving shaft by meshing with a second gear, then the chain wheel and a chain drive a tool sleeve to operate, a tool is moved to a tool taking mechanism, and in the operation process of the tool sleeve, a tool cleaning mechanism is triggered to act; and chippings loaded on the cutter in the cutter sleeve are cleaned up.

Description

Technical Field

[0001] This invention relates to the field of tool magazine technology, and more particularly to a rotary tool magazine mechanism. Background Technology

[0002] In the field of CNC machine tool machining, the tool magazine, as a key component for storing and changing tools, directly affects machining efficiency and accuracy. Traditional rotary tool magazines mostly use a single drive source to rotate the tool turntable to achieve tool changing, but they have the following shortcomings: First, machining debris is easily left on the tool during tool changing. If it is not cleaned in time, it will lead to a decrease in the surface accuracy of the workpiece in subsequent machining, or even damage to the tool; Second, some tool magazine cleaning mechanisms require an additional power source, which not only increases energy consumption, but also makes the overall structure more complex and increases maintenance costs. To address the aforementioned issues, this application proposes a rotary tool magazine mechanism. By optimizing the transmission structure, the tool changing drive and tool cleaning function are linked, enabling automatic tool cleaning without additional power. This also simplifies the structural design and improves tool changing efficiency and ease of maintenance. Summary of the Invention

[0003] Based on the technical problems existing in the prior art, this invention proposes a rotary tool magazine mechanism.

[0004] This invention proposes a rotary tool magazine mechanism, comprising a housing with two drive shafts rotatably connected to the back of the housing. Each drive shaft has a sprocket fixedly mounted on it, and a chain inside the housing connects the two sprockets. Multiple evenly distributed tool holders for loading tools are mounted on the chain. A motor is fixedly connected to the rear of the housing, with a gear mounted on its output shaft. A gear is mounted on a drive shaft adjacent to the motor, and gears one and two are meshed. A tool cleaning mechanism is installed inside the housing, and a tool retrieval mechanism is installed on the housing. The system drives the motor to operate according to instructions, causing the output shaft of the motor to rotate gear one. Gear one then meshes with gear two, causing the sprocket to rotate around the drive shaft. The transmission between the sprocket and the chain drives the chain to rotate the tool holders, moving the required tool to the tool retrieval mechanism. The tool retrieval mechanism then removes the tool from the corresponding tool holder for tool replacement. During the rotation of the tool holders, the tool cleaning mechanism is triggered to clean debris from the tools loaded in the tool holders.

[0005] Preferably, the tool cleaning mechanism includes multiple cylindrical brushes arranged along the chain path and rotatably connected to the housing, and the cylindrical brushes are connected to a drive assembly; during the operation of the tool holder, the tool holder will trigger the drive assembly, and then the drive assembly will drive the cylindrical brushes to rotate, thereby cleaning the tool.

[0006] Preferably, the drive assembly includes an L-plate, the top of which has an arc-shaped portion that can contact the blade sheath. The L-plate passes through an opening in the housing, and the arc-shaped portion forms an elastic connection with the housing. A rack is fixedly connected to the bottom of the L-plate, and a toothed ring that meshes with the rack is fixedly fitted to the end of the cylindrical brush. During the operation of the blade sheath, the arc-shaped portion will press the L-plate downwards, and then the L-plate will synchronously drive the rack to move. Then, the rack will mesh with the toothed ring to drive the cylindrical brush to rotate. When the blade sheath and the arc-shaped portion disengage, the L-plate will return to its original position under the action of elasticity. At this time, the cylindrical brush will be driven to rotate in the opposite direction again to clean the blade.

[0007] Preferably, a guide sleeve is fixedly connected to the bottom of the rear of the housing, a guide post is inserted into the guide sleeve and its end is fixedly connected to the L plate, and a spring is sleeved on the guide post. The two ends of the spring are fixedly connected to the guide sleeve and the guide post respectively; the L plate can be driven to perform a reset action by the elastic force of the spring.

[0008] Preferably, a pair of bearing seats are fixedly connected to the inner wall of the bottom of the box, and a reciprocating screw is rotatably connected to the two bearing seats. A push plate is also slidably connected inside the box to form a transmission engagement with the reciprocating screw. The end of the reciprocating screw near the rack one is connected to a gear ring two through a one-way bearing. The gear ring two is engaged with the rack two fixedly connected to the rack one. When the rack one moves downward each time, under the one-way transmission action of the one-way bearing, the rack two will engage and drive the gear ring two to rotate. Then the gear ring two will synchronously drive the reciprocating screw to rotate. Then the reciprocating screw will drive the push plate to move back and forth along the length of the box. In this way, the debris falling on the bottom wall of the box can be pushed to both sides, so that the debris is collected at the bottom sides of the box, which is convenient for subsequent cleaning by workers.

[0009] Preferably, the back of the housing is fixedly connected to a mounting base for installation on a CNC machine tool, one end of the front of the housing is provided with an openable side door panel, the tool retrieval mechanism is installed at the tool outlet at the other end of the housing, and multiple glass windows are also embedded in the front of the housing; the rotary tool magazine mechanism can be installed on the CNC machine tool through the mounting base, the side door panel can be opened to facilitate maintenance of the equipment, and accumulated debris can be cleaned at the tool outlet and the side door panel, the tool retrieval mechanism performs the tool retrieval action at the tool outlet, and the operating status of the equipment can be easily observed through the glass windows.

[0010] Preferably, the side door panel is rotatably connected to the housing, and the housing is also equipped with a bolt for closing the side door panel; the side door panel can be easily opened or closed using the bolt.

[0011] Preferably, the tool-retrieving mechanism includes a transmission box fixedly connected to a protective shell at the rear of the housing. A second motor and an electric push rod are mounted on the transmission box. A horizontal plate is fixedly connected to the output shaft of the electric push rod, and tool-retrieving fixtures are fixedly connected to both ends of the horizontal plate. First, the output shaft of the electric push rod moves the horizontal plate and the tool-retrieving fixtures upwards to the corresponding tool location. Then, the tool is removed from the tool holder by the tool-retrieving fixtures. Next, the output shaft of the electric push rod drives the horizontal plate downwards. Then, the output shaft of the second motor drives the electric push rod, the horizontal plate, and the tool-retrieving fixtures to rotate through the transmission box, causing the tool-retrieving fixtures holding the tool to move closer to the CNC machine tool. Finally, the subsequent tool loading action is performed.

[0012] Preferably, the transmission box is provided with two meshing transmission gears, one of which is mounted on the output shaft of the second motor and the other is mounted on the electric push rod; the electric push rod can be rotated under the drive of the second motor through the transmission engagement of the two transmission gears.

[0013] Compared with the prior art, the present invention provides a rotary tool magazine mechanism, which has the following advantages: 1. A rotary tool magazine mechanism, which triggers the drive assembly by the rotation of the tool sleeve, so that the cylindrical brush moves with the tool sleeve to achieve bidirectional rotation, which can thoroughly clean the debris on the tool surface, avoid residual impurities from affecting the machining accuracy, and the cleaning process does not require an additional power source, making it energy-saving and efficient.

[0014] 2. A rotary tool magazine mechanism that uses the movement of rack one to drive the reciprocating screw to rotate, causing the push plate to move back and forth along the length of the housing, pushing the bottom debris to the sides to gather. Combined with the design of the side door panel and the tool outlet, it is convenient for workers to clean up in a concentrated manner and reduce maintenance time.

[0015] 3. A rotary tool magazine mechanism, wherein the tool retrieval mechanism achieves rapid tool grabbing and steering adjustment through the coordinated action of an electric push rod and a second motor, and the gear meshing transmission in the transmission box is stable, ensuring accurate and efficient tool changing action and improving the overall machining rhythm. Attached Figure Description

[0016] Figure 1 This is a front structural schematic diagram of a rotary tool magazine mechanism proposed in this invention; Figure 2 This is a cross-sectional view of a rotary tool magazine mechanism proposed in this invention. Figure 3 This is a schematic diagram of the rear structure of a rotary tool magazine mechanism proposed in this invention; Figure 4 For the present invention Figure 2 A magnified structural diagram at point A; Figure 5 For the present invention Figure 3 A magnified structural diagram at point B; Figure 6 For the present invention Figure 1 A magnified structural diagram at point C; Figure 7 This is a schematic diagram of the tool retrieval mechanism of a rotary tool magazine mechanism proposed in this invention.

[0017] In the diagram: 1. Housing; 2. Drive shaft; 3. Sprocket; 4. Chain; 5. Tool holder; 6. Motor 1; 7. Gear 1; 8. Gear 2; 9. Fixing base; 10. L-plate; 11. Arc-shaped part; 12. Rack 1; 13. Cylindrical brush; 14. Gear ring 1; 15. Guide sleeve; 16. Guide post; 17. Spring; 18. Opening; 19. Tool outlet; 20. Side door panel; 21. Door bolt; 22. Bearing seat; 23. Reciprocating screw; 24. Push plate; 25. Gear ring 2; 26. One-way bearing; 27. Rack 2; 28. Transmission box; 29. ​​Protective shell; 30. Motor 2; 31. Electric push rod; 32. Horizontal plate; 33. Tool removal clamp. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0019] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0020] Reference Figures 1-7 A rotary tool magazine mechanism includes a housing 1. Two drive shafts 2 are rotatably connected to the back of the housing 1. Sprockets 3 are fixedly mounted on the two drive shafts 2 respectively. A chain 4 located inside the housing 1 is connected between the two drive shafts 3. Multiple evenly distributed tool sleeves 5 for loading tools are installed on the chain 4. A motor 6 is fixedly connected to the rear end of the housing 1. A gear 7 is installed on the output shaft of the motor 6. A gear 8 is installed on a drive shaft 2 adjacent to the motor 6. Gear 7 and gear 8 are meshed. A tool cleaning mechanism is provided inside the housing 1. A tool retrieval mechanism is provided on the housing 1. In use, the system drives motor 6 to work according to the command. The output shaft of motor 6 drives gear 7 to rotate. Then, gear 7 meshes with gear 8 to make sprocket 3 rotate around drive shaft 2. Then, through the transmission cooperation of sprocket 3 and chain 4, chain 4 drives the tool holder 5 to rotate, moving the tool to be picked up to the tool picking mechanism. Then, the tool picking mechanism will take away the corresponding tool from the tool holder 5 for tool replacement. During the operation of tool holder 5, the tool cleaning mechanism is triggered to clean the debris on the tool loaded in tool holder 5.

[0021] The tool cleaning mechanism includes multiple cylindrical brushes 13 arranged along the path of chain 4 and rotatably connected to the housing 1. The cylindrical brushes 13 are connected to a drive assembly. During use, as the tool holder 5 rotates, it triggers the drive assembly, which in turn drives the cylindrical brush 13 to rotate, thus cleaning the tool.

[0022] The drive assembly includes an L-plate 10. The top of the L-plate 10 is provided with an arc-shaped part 11 that can contact the blade sleeve 5. The L-plate 10 passes through the opening 18 on the housing 1. An elastic connection is formed between the arc-shaped part 11 and the housing 1. A rack 12 is fixedly connected to the bottom of the L-plate 10. A toothed ring 14 that meshes with the rack 12 is fixedly sleeved at the end of the cylindrical brush 13. During use, as the blade sleeve 5 rotates, the arc-shaped part 11 will press the L plate 10 downwards. Then, the L plate 10 will synchronously drive the rack 12 to move. Next, the rack 12 will mesh with the gear ring 14 to drive the cylindrical brush 13 to rotate. When the blade sleeve 5 and the arc-shaped part 11 disengage, the L plate 10 will return to its original position under the action of elasticity. At this time, the cylindrical brush 13 will be driven to rotate in the opposite direction again to clean the blade. It should be noted that: the knife includes the handle and the blade; the cylindrical brush 13 cleans the knife, but actually cleans the blade. Figure 2 The diagram shows a partial view of the blades installed inside the blade sheath 5. The blades in the diagram are for illustrative purposes only. The blades are drawn at a relatively large size to clearly show the positional relationship between the cylindrical brush 13 and the blades, rather than their actual size. In reality, the diameter of the handle is approximately ten to several tens of times that of the blade. In addition, the bristles of the cylindrical brush 13 in this application are preferably made of soft bristles of appropriate length, so that they can more comprehensively cover the blade and improve the cleaning effect.

[0023] Among them, a guide sleeve 15 is fixedly connected to the bottom of the rear of the box 1. A guide post 16 with its end fixedly connected to the L plate 10 is inserted into the guide sleeve 15. A spring 17 is sleeved on the guide post 16. The two ends of the spring 17 are fixedly connected to the guide sleeve 15 and the guide post 16 respectively. When in use, the spring force of spring 17 can drive L plate 10 to perform a reset action.

[0024] Furthermore, a pair of bearing seats 22 are fixedly connected to the inner wall of the bottom of the housing 1. A reciprocating screw 23 is rotatably connected to the two bearing seats 22. A push plate 24 that forms a transmission cooperation with the reciprocating screw 23 is also slidably connected inside the housing 1. The end of the reciprocating screw 23 near the rack 12 is connected to a gear ring 25 through a one-way bearing 26. The gear ring 25 is meshed with a rack 27 that is fixedly connected to the rack 12. In use, each time rack 12 moves downward, rack 27 will mesh and drive gear ring 25 to rotate under the unidirectional transmission action of one-way bearing 26. Then gear ring 25 will synchronously drive reciprocating screw 23 to rotate. Then reciprocating screw 23 will drive push plate 24 to move back and forth along the length of box 1. In this way, the debris falling on the bottom wall of box 1 can be pushed to both sides, so that the debris is collected on both sides of the bottom of box 1, which is convenient for subsequent cleaning by workers.

[0025] In addition, a fixed base 9 for mounting on a CNC machine tool is fixedly connected to the back of the housing 1, and an openable side door 20 is provided at one end of the front of the housing 1. The tool taking mechanism is installed at the tool outlet 19 at the other end of the housing 1. Multiple glass windows are also embedded in the front of the housing 1. When in use, the rotary tool magazine mechanism can be installed on the CNC machine tool through the fixed base 9. The side door 20 can be opened to facilitate maintenance of the equipment. The accumulated debris can be cleaned at the tool outlet 19 and the side door 20. The tool retrieval mechanism performs the tool retrieval action at the tool outlet 19. The operating status of the equipment can be easily observed through the glass window.

[0026] The side door panel 20 is rotatably connected to the housing 1, and the housing 1 is also equipped with a door bolt 21 for closing the side door panel 20. When in use, the side door panel 20 can be easily opened or closed using the door bolt 21.

[0027] The tool-retrieving mechanism includes a transmission box 28 fixedly connected to a protective shell 29 at the rear of the housing 1. A motor 30 and an electric push rod 31 are installed on the transmission box 28. A horizontal plate 32 is fixedly connected to the output shaft of the electric push rod 31. Tool-retrieving clamps 33 are fixedly connected to both ends of the horizontal plate 32. In use, the output shaft of the electric push rod 31 first causes the horizontal plate 32 and the tool holder 33 to move upward to the corresponding tool position. Then, the tool is removed from the tool holder 5 by the tool holder 33. Next, the output shaft of the electric push rod 31 drives the horizontal plate 32 to move downward. Then, the output shaft of the second motor 30 drives the electric push rod 31, the horizontal plate 32 and the tool holder 33 to rotate through the transmission box 28, so that the tool holder 33 holding the tool moves to the direction closer to the CNC machine tool. Finally, the subsequent tool loading action is performed. It should be noted that the structure of the tool removal fixture 33 shown in the attached figure is only a schematic structure. Its specific structure and principle are mature technologies in this field. In this application, only the basic functions of the fixture are used, so no specific limitations are made here.

[0028] The transmission box 28 is equipped with two meshing transmission gears. One transmission gear is mounted on the output shaft of the motor 30, and the other is mounted on the electric push rod 31. In use, the electric push rod 31 can be rotated under the drive of the motor 30 through the transmission and engagement of the two transmission gears.

[0029] Working principle: Tool holder rotation drive: The system command drives motor 6 to work. The output shaft of motor 6 drives gear 7 to rotate. Gear 7 meshes with gear 8, causing the adjacent drive shaft 2 to rotate, which in turn drives sprocket 3 to rotate around drive shaft 2. Through the transmission of the two sprockets 3, chain 4 drives tool holder 5 to rotate along the path of chain 4, and transports the target tool to the tool taking mechanism. Tool retrieval mechanism operation: When retrieving the tool, the output shaft of the electric push rod 31 drives the horizontal plate 32 and the tool retrieval fixture 33 to move upward to the target tool holder 5. After the tool retrieval fixture 33 grabs the tool, the electric push rod 31 drives the horizontal plate 32 to move downward. Then, the output shaft of the second motor 30 drives the electric push rod 31, the horizontal plate 32 and the tool retrieval fixture 33 to rotate through two meshing transmission gears in the transmission box 28, so that the tool turns towards the direction of the CNC machine tool, and the tool retrieval action is completed. Knife cleaning action: During the operation of the knife sleeve 5, it contacts the arc-shaped part 11 of the L plate 10, squeezing the L plate 10 to move downward along the opening 18, and simultaneously driving the rack 12 to move downward. The rack 12 meshes with the gear ring 14, driving the cylindrical brush 13 to rotate in the forward direction to clean the knife. When the knife sleeve 5 disengages from the arc-shaped part 11, the spring 17 on the guide post 16 returns to its original position, driving the L plate 10 to move upward. The rack 12 moves in the reverse direction, causing the gear ring 14 to drive the cylindrical brush 13 to rotate in the reverse direction, thus achieving secondary cleaning. Debris collection process: When rack 12 moves down, it drives rack 27 to move synchronously. Rack 27 meshes with gear ring 25. Under the unidirectional transmission action of one-way bearing 26, gear ring 25 drives reciprocating screw 23 to rotate. Reciprocating screw 23 and push plate 24 form a transmission cooperation, causing push plate 24 to move back and forth along the length of box 1, pushing the bottom debris to the sides to collect.

[0030] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A rotary tool magazine mechanism, comprising a housing (1), characterized in that, The back of the housing (1) is rotatably connected to two drive shafts (2), and sprockets (3) are fixedly mounted on the two drive shafts (2). The two sprockets (3) are connected together by a chain (4) located inside the housing (1). Multiple uniformly distributed knife sleeves (5) for loading knives are installed on the chain (4). The rear end of the housing (1) is fixedly connected to a motor (6). A gear (7) is installed on the output shaft of the motor (6). A gear (8) is installed on a drive shaft (2) adjacent to the motor (6). The gear (7) and the gear (8) are meshed. A knife cleaning mechanism is provided inside the housing (1). A knife removal mechanism is provided on the housing (1). The tool cleaning mechanism includes multiple cylindrical brushes (13) arranged along the path of the chain (4) and rotatably connected to the housing (1), and the cylindrical brushes (13) are connected to a drive assembly; The drive assembly includes an L plate (10), the top of which is provided with an arc-shaped part (11) that can contact the blade sleeve (5). The L plate (10) passes through the opening (18) on the housing (1), and the arc-shaped part (11) and the housing (1) form an elastic connection. The bottom end of the L plate (10) is fixedly connected to a rack (12), and the end of the cylindrical brush (13) is fixedly fitted with a toothed ring (14) that meshes with the rack (12).

2. The rotary tool magazine mechanism according to claim 1, characterized in that, A guide sleeve (15) is fixedly connected to the bottom of the rear of the box (1). A guide post (16) with its end fixedly connected to the L plate (10) is inserted into the guide sleeve (15). A spring (17) is sleeved on the guide post (16). The two ends of the spring (17) are fixedly connected to the guide sleeve (15) and the guide post (16) respectively.

3. A rotary tool magazine mechanism according to claim 1, characterized in that, A pair of bearing seats (22) are fixedly connected to the bottom inner wall of the box (1). A reciprocating screw (23) is rotatably connected to the two bearing seats (22). A push plate (24) that forms a transmission cooperation with the reciprocating screw (23) is also slidably connected inside the box (1). A gear ring (25) is connected to the end of the reciprocating screw (23) near the rack (12) through a one-way bearing (26). The gear ring (25) is meshed with a rack (27) that is fixedly connected to the rack (12).

4. A rotary tool magazine mechanism according to claim 1, characterized in that, The back of the housing (1) is fixedly connected to a mounting base (9) for installation on a CNC machine tool. One end of the front of the housing (1) is provided with an openable side door panel (20). The tool taking mechanism is installed at the tool outlet (19) at the other end of the housing (1). The front of the housing (1) is also fitted with multiple glass windows.

5. A rotary tool magazine mechanism according to claim 4, characterized in that, The side door panel (20) is rotatably connected to the box body (1), and the box body (1) is also equipped with a door bolt (21) for closing the side door panel (20).

6. A rotary tool magazine mechanism according to claim 4, characterized in that, The tool-retrieving mechanism includes a transmission box (28) fixedly connected to a protective shell (29) behind the housing (1). The transmission box (28) is equipped with a motor (30) and an electric push rod (31). The output shaft of the electric push rod (31) is fixedly connected to a horizontal plate (32). Both ends of the horizontal plate (32) are fixedly connected to tool-retrieving clamps (33).

7. A rotary tool magazine mechanism according to claim 6, characterized in that, The transmission box (28) is equipped with two meshing transmission gears. One transmission gear is installed on the output shaft of motor two (30), and the other is installed on the electric push rod (31).

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