Tool changing mechanism of a drilling and tapping machine
Patent Information
- Application Number
- CN202522564320.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-03
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-12-03
AI Technical Summary
[0005]本申请的目的是针对现有技术的不足之处，提供钻攻机的换刀机构，以解决现有技术中在换刀作业中，使用完毕的钻头刀具可能会携带作业中的切屑及油污等回归换刀库对应区域，长时间累积下这些杂质会逐渐在刀库和刀座的配合部位堆积，而杂质可能改变刀库与刀座原本的配合状态，使得换刀时定位精度下降，增加换刀失败的概率，严重时甚至会引发卡刀故障，进而中断加工流程的问题
在换刀作业中，被使用过的刀具表面会不可避免地残留切屑、油污等杂质，当这些刀具放置到刀库盘上的对应位置后，转动机构会借助自身结构带动刀库盘转动，使刀具存放区域移动至清洁组件的清洁区域下方，随后人员启动主支气管与机床气源连接段的电磁阀，此时进入主支气管内的气源压缩空气会依次经过分流架及与其相连通的多个分支气管，并直接从对应的喷气嘴中喷出，这多股强劲气流正对刀库盘上对应待清理刀架的上方，从而能将刀架及刀具上残留的杂质等吹落，在该状态下，被顺势吹落的杂质会因重力作用，经固定盒上方设置的排屑导板与排屑导槽引导进入收集盒内收集，人员后续只需定期借助搭载槽与活动导区的导向，将收集盒从固定盒内抽出，即可对内部杂质进行处理。
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Figure CN224896587U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of drilling and tapping machines, and more specifically, to the tool changing mechanism of drilling and tapping machines. Background Technology
[0002] Drilling and tapping machines are mostly used for drilling and tapping processes. In actual processing, it is often required to complete two or more processes such as drilling, reaming, boring, and tapping continuously to improve the shape, size, and positional accuracy of the workpiece hole, while reducing the number of loading, unloading, and positioning operations and improving production efficiency. In drilling and tapping operations, a tool changing mechanism is often required to replace the drill and tap heads.
[0003] In the current use of drilling and tapping machines, during tool changing operations, the used drill bit may carry chips and oil stains back to the corresponding area of the tool magazine. Over time, these impurities will gradually accumulate in the mating parts of the tool magazine and tool holder. These impurities may change the original mating state between the tool magazine and tool holder, resulting in a decrease in positioning accuracy during tool changing, increasing the probability of tool changing failure, and in severe cases, even causing tool jamming, thus interrupting the machining process. Utility Model Content
[0004] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.
[0005] The purpose of this application is to address the shortcomings of existing technologies by providing a tool changing mechanism for drilling and tapping machines. This mechanism solves the problem that in existing technologies, used drill bits may carry chips and oil residue back to the corresponding area of the tool magazine during tool changing operations. Over time, these impurities accumulate at the mating parts of the tool magazine and tool holder, potentially altering the original mating state between them. This reduces positioning accuracy during tool changing, increases the probability of tool changing failure, and in severe cases, may even cause tool jamming, thereby interrupting the machining process.
[0006] To achieve the above objectives, this application provides the following technical solution: The tool changing mechanism of the drilling and tapping machine includes: a fixed bracket, a connecting column fixed at the bottom end of the fixed bracket, and a protective ring frame connected to the end of the connecting column; a rotating mechanism jointly provided in the middle of the fixed bracket, the connecting column and the protective ring frame; an intermittent opening and closing mechanism provided on the sides of the fixed bracket and the protective ring frame; a cleaning mechanism jointly provided inside and outside the protective ring frame; the cleaning mechanism includes a cleaning component, which is disposed inside and above the protective ring frame; and a collection component is provided on the lower side of one side of the protective ring frame.
[0007] Furthermore, the cleaning component includes fixing rods, which are disposed on the upper side inside the protective ring frame. The ends of the fixing rods are connected to ring discs, and the central periphery of the ring discs is equipped with air nozzles. The ends of the air nozzles are connected to branch air pipes, and the ends of the branch air pipes are connected to a diverter frame. The other side of the diverter frame is connected to a main bronchus.
[0008] Furthermore, the main bronchus is connected to multiple branch bronchus tubes and air nozzles via a shunt frame.
[0009] Furthermore, the collection component includes a fixed box, which is fixed to one side of the bottom of the protective ring frame. A chip removal guide plate is provided above the fixed box, and a chip removal guide groove is connected to the end of the chip removal guide plate. A mounting groove is provided in the middle of the fixed box, and movable guide areas are provided on both sides of the mounting groove. The collection box is movably mounted in the middle of the movable guide area and the mounting groove. A first magnetic block is provided on the upper inner side of one side of the collection box, and a second magnetic block is provided at the front end of the fixed box opposite to the first magnetic block and magnetically attracted to it.
[0010] Furthermore, the rotating mechanism includes a servo motor, which is mounted on the upper side of the fixed bracket. A rotating rod is mounted in the middle of the fixed bracket, and a first synchronous pulley is fixed around the top of the rotating rod and around the output end of the servo motor. A first synchronous belt is sleeved around the two first synchronous pulleys, and a tool magazine is connected to the bottom of the rotating rod.
[0011] Furthermore, the intermittent opening and closing mechanism includes a side fixing plate, which is fixed to one side of the fixed mounting frame. A forward and reverse motor is installed above the side fixing plate, and a second synchronous pulley is fixed around the output end of the forward and reverse motor. A rotating shaft is provided around the connecting column, and a third synchronous pulley is fixed on the upper part of the rotating shaft. A second synchronous belt is sleeved around the third synchronous pulley and the second synchronous pulley. A connecting shield is fixed on one side of the lower part of the rotating shaft, and a movable guide rail is fixed on one section of the periphery of the protective ring frame.
[0012] Furthermore, the movable guide rail is connected to the shielding frame via a movable guide assembly.
[0013] The beneficial effects of this application are as follows: During tool changing operations, used tools inevitably retain chips, oil, and other impurities on their surfaces. When these tools are placed in their corresponding positions on the tool magazine tray, the rotating mechanism drives the tray to rotate, moving the tool storage area below the cleaning area of the cleaning component. Then, the operator activates the solenoid valve connecting the main air supply pipe to the machine tool's air source. Compressed air entering the main air supply pipe passes sequentially through the distributor and its connected branch pipes, and is directly ejected from the corresponding nozzles. This powerful airflow is directed towards the tool holders on the tool magazine tray, blowing away residual impurities from the tool holders and tools. Under this condition, the blown-off impurities are guided by gravity through the chip guide plate and chip guide groove above the fixed box into the collection box. The operator can then periodically remove the collection box from the fixed box using the mounting slot and movable guide area to remove the internal impurities.
[0014] When a tool change is required, the servo motor can be controlled to rotate. Since the output end of the servo motor and the opposite section of the rotating rod are equipped with first synchronous pulleys, and the two first synchronous pulleys are meshed with first synchronous belts, the rotating rod can drive the tool magazine plate fixed at its end to rotate synchronously and adjust under the action of this drive structure, thereby accurately adjusting the position of the required tool to the tool change area.
[0015] When the operator starts the forward and reverse motors, the second synchronous pulley rotates. Since the second synchronous pulley is fitted with a second synchronous belt, it can synchronously drive the third synchronous pulley and the rotating shaft fixed in the middle to rotate under the action of meshing transmission. At this time, the connecting cover fixed to one side of the rotating shaft will rotate in a guided circumferential direction along the corresponding movable guide rail on the protective ring frame, thereby fully exposing the tool changing area and providing convenient conditions for the subsequent corresponding tool changing process of the drilling and tapping machine tool holder. Attached Figure Description
[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.
[0017] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.
[0018] In the attached diagram: Figure 1 This is a three-dimensional structural diagram of the present application; Figure 2 This is a schematic diagram of the rotating mechanism structure of this application; Figure 3 For the purposes of this application Figure 1Schematic diagram of the structure at point A in the middle; Figure 4 This is a schematic diagram of the collection component structure of this application.
[0019] Figure label: 1. Fixed bracket; 2. Connecting column; 3. Protective ring frame; 4. Rotating mechanism; 41. Servo motor; 42. Rotating rod; 43. First synchronous pulley; 44. First synchronous belt; 45. Tool magazine disc; 5. Intermittent opening and closing mechanism; 51. Side fixing plate; 52. Forward and reverse motor; 53. Second synchronous pulley; 54. Rotating shaft; 55. Third synchronous pulley; 56. Second synchronous belt; 57. Connecting shield; 58. Movable guide rail; 6. Cleaning mechanism; 61. Cleaning component; 611. Fixed rod; 612. Ring disc; 613. Air nozzle; 614. Branch air pipe; 615. Diverter frame; 616. Main branch air pipe; 62. Collection component; 621. Fixed box; 622. Chip removal guide plate; 623. Chip removal guide groove; 624. Mounting groove; 625. Movable guide area; 626. Collection box; 627. First magnetic block; 628. Second magnetic block. Detailed Implementation
[0020] The tool changing mechanism of the drilling and tapping machine provided in this application will be described in detail below with reference to the accompanying drawings and specific embodiments. It should also be noted that, in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can also use other alternative methods to implement some well-known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this application.
[0021] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.
[0022] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.
[0023] The present application will now be described in detail with reference to the accompanying drawings and embodiments.
[0024] Reference Figure 1-4 As shown, this utility model provides a tool changing mechanism for a drilling and tapping machine, including: a fixed mounting frame 1, a connecting column 2 fixedly mounted at the bottom end of the fixed mounting frame 1, and a protective ring frame 3 connected to the end of the connecting column 2; a rotating mechanism 4 jointly mounted in the middle of the fixed mounting frame 1, the connecting column 2, and the protective ring frame 3; an intermittent opening and closing mechanism 5 provided on the sides of the fixed mounting frame 1 and the protective ring frame 3; a cleaning mechanism 6 jointly mounted inside and outside the protective ring frame 3; the rotating mechanism 4 includes a servo motor 41, which is mounted on the upper side of the fixed mounting frame 1; a rotating rod 42 is mounted in the middle of the fixed mounting frame 1, and the top periphery of the rotating rod 42 and the servo motor 41 are connected to the tool changing mechanism 6. A first synchronous pulley 43 is fixedly provided around the output end of the servo motor 41, and a first synchronous belt 44 is sleeved around the two first synchronous pulleys 43. The bottom end of the rotating rod 42 is connected to a tool magazine 45. When a tool change is required, the servo motor 41 can be controlled to rotate. Since the output end of the servo motor 41 and the opposite section of the rotating rod 42 are both provided with first synchronous pulleys 43, and the two first synchronous pulleys 43 are meshed with the first synchronous belt 44, under the action of this drive structure, the rotating rod 42 can drive the tool magazine 45 fixed at its end to rotate synchronously and adjust, thereby accurately adjusting the position of the required tool to the tool change area.
[0025] The intermittent opening and closing mechanism 5 includes a side fixing plate 51, which is fixed to one side of the fixed mounting frame 1. A forward and reverse motor 52 is installed above the side fixing plate 51, and a second synchronous pulley 53 is fixed around the output end of the forward and reverse motor 52. A rotating shaft 54 is provided around the connecting column 2, and a third synchronous pulley 55 is fixed around the upper part of the rotating shaft 54. A second synchronous belt 56 is sleeved around the third synchronous pulley 55 and the second synchronous pulley 53. A connecting shield 57 is fixed on one side of the lower part of the rotating shaft 54. A movable guide rail 58 is fixed around one section of the protective ring frame 3. The rail 58 is connected to the shield 57 by a movable guide. When the operator starts the forward and reverse motor 52, it drives the second synchronous wheel 53 to rotate. Since the second synchronous wheel 53 is fitted with a second synchronous belt 56, it can synchronously drive the third synchronous wheel 55 and the rotating shaft 54 fixed in the middle to rotate under the action of meshing transmission. At this time, the connecting shield 57, which is fixed to one side of the rotating shaft 54, will rotate in a guided circumferential direction along the movable guide rail 58 corresponding to the protective ring frame 3, thereby fully exposing the tool changing area and providing convenient conditions for the subsequent corresponding tool changing process of the drilling and tapping machine tool holder.
[0026] Furthermore, the cleaning mechanism 6 includes a cleaning component 61, which is disposed inside and above the protective ring frame 3. The cleaning component 61 includes fixing rods 611, which are distributed on the upper side inside the protective ring frame 3. The ends of the fixing rods 611 are connected to a ring disc 612, and air nozzles 613 are distributed around the center of the ring disc 612. The ends of the air nozzles 613 are connected to branch air pipes 614, and the ends of the branch air pipes 614 are connected to a diverter 615. The other side of the diverter 615 is connected to a main bronchus 616, which is connected to the diverter 615 via the diverter 615. Multiple sets of branch air pipes 614 and jet nozzles 613 are connected. A collection component 62 is provided on the lower side of one side of the protective ring frame 3. The collection component 62 includes a fixed box 621, which is fixed to one side of the bottom of the protective ring frame 3. A chip removal guide plate 622 is provided above the fixed box 621, and a chip removal guide groove 623 is connected to the end of the chip removal guide plate 622. A mounting groove 624 is opened in the middle of the fixed box 621, and movable guide areas 625 are provided on both sides of the mounting groove 624. A collection box 626 is movably guided in the middle of the movable guide area 625 and the mounting groove 624, and a collection box 626 is mounted on the upper inner side of one side of the collection box 626. A first magnetic block 627 is provided, and a second magnetic block 628 is provided at the front end of the fixing box 621 opposite to the first magnetic block 627, magnetically attracting it. During the tool changing operation, the surface of the used tool will inevitably have residual chips, oil stains and other impurities. When these tools are placed in the corresponding positions on the tool magazine tray 45, the rotating mechanism 4 will drive the tool magazine tray 45 to rotate by its own structure, so that the tool storage area moves below the cleaning area of the cleaning component 61. Then, the operator activates the solenoid valve of the connection section between the main bronchial pipe 616 and the machine tool air source. At this time, the compressed air from the air source entering the main bronchial pipe 616 will pass through the splitter 6 in sequence. 15 and multiple branch air pipes 614 connected to it, and spray directly from the corresponding jet nozzles 613. These multiple strong airflows are directed at the top of the tool holder to be cleaned on the tool magazine plate 45, thereby blowing off the impurities remaining on the tool holder and the tool. In this state, the impurities blown off will be guided by gravity through the chip guide plate 622 and chip guide groove 623 set above the fixed box 621 into the collection box 626 for collection. Afterwards, the personnel only need to periodically use the mounting groove 624 and the movable guide area 625 to pull the collection box 626 out of the fixed box 621 to process the internal impurities.
[0027] Working principle: In operation, the tool changing mechanism of this drilling and tapping machine controls the rotation of the servo motor 41 when a tool change is needed. Since the output end of the servo motor 41 and the peripheral section opposite to the rotating rod 42 are both equipped with first synchronous pulleys 43, and the peripheral sections of the two first synchronous pulleys 43 are meshed with first synchronous belts 44, under the action of this drive structure, the rotating rod 42 can drive the tool magazine disc 45 fixed at its end to rotate synchronously and adjust, thereby accurately adjusting the position of the required tool to the tool changing area. Then, the operator starts the forward and reverse motors 52. The second synchronous pulley 53 is driven to rotate. Since the second synchronous pulley 53 is fitted with a second synchronous belt 56, the third synchronous pulley 55 and the rotating shaft 54 fixed in the middle can be driven to rotate synchronously under the action of meshing transmission. At this time, the connecting cover 57, which is fixed to one side of the rotating shaft 54, will rotate in a guided circumferential direction along the corresponding movable guide rail 58 on the protective ring frame 3, thereby fully exposing the tool changing area and providing convenient conditions for the subsequent corresponding tool changing process of the drilling and tapping machine tool holder. Finally, during the tool changing operation, the used tool... Inevitably, chips, oil, and other impurities will remain on the surface of the tools. After these tools are placed in their corresponding positions on the tool magazine tray 45, the rotating mechanism 4 will use its own structure to drive the tool magazine tray 45 to rotate, moving the tool storage area below the cleaning area of the cleaning component 61. Then, the operator will activate the solenoid valve of the connection section between the main bronchial air pipe 616 and the machine tool air source. At this time, the compressed air entering the main bronchial air pipe 616 will pass through the distributor 615 and multiple branch air pipes 614 connected to it in sequence, and directly exit from the corresponding jet nozzle 6. Multiple strong airflows are ejected from the 13th nozzle and directed towards the tool holder above the tool magazine 45, thereby blowing away residual impurities on the tool holder and tools. In this state, the impurities blown off by the airflow will be guided by gravity through the chip guide plate 622 and chip guide groove 623 above the fixed box 621 into the collection box 626 for collection. Personnel only need to periodically use the mounting groove 624 and the movable guide area 625 to pull the collection box 626 out of the fixed box 621 to process the internal impurities.
[0028] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
[0029] It should be noted that this application covers any alternatives, modifications, equivalent methods, and solutions made within the spirit and scope of this application. To provide the public with a thorough understanding of this application, specific details are described in detail in the preferred embodiments, while those skilled in the art can fully understand this application without these details. Furthermore, to avoid unnecessary confusion regarding the substance of this application, well-known methods, processes, procedures, components, and circuits are not described in detail.
[0030] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.
Claims
1. The tool changing mechanism of the drilling and tapping machine, including: A fixed mounting bracket (1) is characterized in that: a connecting column (2) is fixedly provided at the bottom end of the fixed mounting bracket (1), and a protective ring frame (3) is connected to the end of the connecting column (2); a rotating mechanism (4) is jointly provided in the middle of the fixed mounting bracket (1), the connecting column (2) and the protective ring frame (3); an intermittent opening and closing mechanism (5) is provided on the side of the fixed mounting bracket (1) and the protective ring frame (3); a cleaning mechanism (6) is jointly provided inside and outside the protective ring frame (3); the cleaning mechanism (6) includes a cleaning component (61), and the cleaning component (61) is provided inside and above the protective ring frame (3); a collection component (62) is provided below one side of the protective ring frame (3).
2. The tool changing mechanism of the drilling and tapping machine according to claim 1, characterized in that: The cleaning component (61) includes a fixing rod (611), which is located on the upper side inside the protective ring frame (3). The ends of the fixing rods (611) are connected to a ring disc (612), and the ring disc (612) is equipped with air nozzles (613) around its center. The ends of the air nozzles (613) are connected to branch air pipes (614), and the ends of the branch air pipes (614) are connected to a shunt frame (615). The other side of the shunt frame (615) is connected to a main bronchus pipe (616).
3. The tool changing mechanism of the drilling and tapping machine according to claim 2, characterized in that: The main bronchus (616) is connected to multiple branch bronchus (614) and jet nozzle (613) via a shunt frame (615).
4. The tool changing mechanism of the drilling and tapping machine according to claim 1, characterized in that: The collecting component (62) includes a fixed box (621), which is fixed to one side of the bottom of the protective ring frame (3). A chip removal guide plate (622) is provided above the fixed box (621), and a chip removal guide groove (623) is connected to the end of the chip removal guide plate (622). A mounting groove (624) is provided in the middle of the fixed box (621), and movable guide areas (625) are provided on both sides of the mounting groove (624). A collecting box (626) is movably mounted in the middle of the movable guide area (625) and the mounting groove (624). A first magnetic block (627) is provided on the upper inner side of one side of the collecting box (626). A second magnetic block (628) is provided at the front end of the fixed box (621) opposite to the first magnetic block (627) and magnetically attracted to it.
5. The tool changing mechanism of the drilling and tapping machine according to claim 1, characterized in that: The rotating mechanism (4) includes a servo motor (41), and the servo motor (41) is installed on the upper side of the fixed bracket (1). A rotating rod (42) is installed in the middle of the fixed bracket (1), and a first synchronous wheel (43) is fixed around the top of the rotating rod (42) and around the output end of the servo motor (41). A first synchronous belt (44) is sleeved around the two first synchronous wheels (43), and a tool magazine disc (45) is connected to the bottom end of the rotating rod (42).
6. The tool changing mechanism of the drilling and tapping machine according to claim 1, characterized in that: The intermittent opening and closing mechanism (5) includes a side fixing plate (51), which is fixed to one side of the fixed bracket (1). A forward and reverse motor (52) is installed above the side fixing plate (51), and a second synchronous wheel (53) is fixed around the output end of the forward and reverse motor (52). A rotating shaft (54) is provided around the connecting column (2), and a third synchronous wheel (55) is fixed on the upper part of the rotating shaft (54). A second synchronous belt (56) is sleeved around the third synchronous wheel (55) and the second synchronous wheel (53). A connecting shield (57) is fixed on one side of the lower part of the rotating shaft (54), and a movable guide rail (58) is fixed on one part of the periphery of the protective ring frame (3).
7. The tool changing mechanism of the drilling and tapping machine according to claim 6, characterized in that: The movable guide rail (58) and the connecting cover (57) are connected by a movable guide assembly.