An automatic lock blade device

Abstract

The application discloses an automatic tool locking device, which comprises a rack, a fixing mechanism and a locking mechanism. The rack is provided with a chuck seat for mounting a chuck. The fixing mechanism comprises a directional assembly and a lifting assembly. The directional assembly is used for positioning the orientation of a tool and is mounted on the lifting assembly. The lifting assembly is arranged on the rack. The lifting assembly drives the directional assembly to move so as to mount or dismount the tool on the chuck. The locking mechanism comprises a locking wrench and a tightening assembly. The tightening assembly is arranged on the rack. The tightening assembly drives the locking wrench to rotate so as to be matched with a locking screw hole on the chuck and lock the tool. The application realizes automatic mounting of the tool, reduces the labor intensity of an operator, and improves the precision and efficiency of tool mounting.

Description

Technical Field

[0001] This application relates to the field of tool mounting technology, and more specifically, to an automatic tool locking device. Background Technology

[0002] In the existing technology, when the cutting tool is installed into the chuck, there are strict requirements for the installation accuracy of the cutting tool tip orientation and height, otherwise it will affect the machining quality or even damage the workpiece. At present, the cutting tool is usually installed manually. During the installation process, the installation accuracy of the cutting tool is verified by visual inspection. This method has problems such as low installation efficiency, high labor intensity of operators and inability to control the installation accuracy. Utility Model Content

[0003] This application provides an automatic tool locking device that enables automatic tool installation, reduces the labor intensity of operators, and improves the accuracy and efficiency of tool installation.

[0004] The automatic knife locking device provided in this application adopts the following technical solution:

[0005] An automatic knife locking device includes:

[0006] A frame, on which a chuck seat is provided, and a chuck is mounted on the chuck seat;

[0007] A fixing mechanism includes an orientation component and a lifting component. The orientation component is used to position the orientation of the tool and is disposed on the lifting component. The lifting component is disposed on the frame. The lifting component drives the orientation component to move to install or remove the tool from the chuck.

[0008] The locking mechanism includes a locking wrench and a tightening assembly. The tightening assembly is disposed on the frame and drives the locking wrench to rotate to engage with the locking screw hole on the chuck to lock the tool.

[0009] Optionally, the orientation component includes a fixing block and a clamping member, the clamping member being disposed on the fixing block, and the fixing block being slidably engaged with the frame;

[0010] The fixing block is provided with a locking groove, the cutting tool has a positioning surface, the cutting tool is located in the locking groove, and the clamping member presses against the positioning surface to fix the cutting tool.

[0011] Optionally, the clamping member includes a ball and a first elastic element, one end of the first elastic element is connected to the ball, the other end of the first elastic element is connected to the fixing block, and the ball compresses the first elastic element and abuts against the positioning surface.

[0012] Optionally, the lifting assembly includes a first driving component, a lead screw, a lead screw nut, and a linear guide rail. The first driving component is fixedly mounted on the frame. The fixing block is connected to the linear guide rail and the lead screw nut respectively. The lead screw passes through the lead screw nut, and one end of the lead screw is located at the output end of the first driving component, while the other end is rotatably mounted on the frame via a lead screw seat.

[0013] Optionally, it also includes a telescopic mechanism, which includes a movable platform and a drive assembly. The movable platform is slidably disposed on the frame, and the sliding direction of the movable platform is perpendicular to the direction of movement of the lifting assembly. One end of the locking wrench is disposed on the movable platform. The drive assembly drives the movable platform to move closer to or away from the chuck, so that the locking wrench moves closer to or away from the locking screw hole on the chuck.

[0014] Optionally, the drive assembly includes a fixed base, a second elastic element, and a guide block. The fixed base is disposed on one side of the movable stage and fixedly installed on the frame. The two ends of the second elastic element are respectively connected to the fixed base and the movable stage. The guide block is disposed on the other side of the movable stage and slides with the frame.

[0015] The guide block has a connecting end and a guiding end. The connecting end is connected to the fixed block, and the guiding end presses against the moving platform to compress or reset the second elastic element.

[0016] Optionally, the guide end is provided with a pressing surface and a guide ramp, the distance between the guide ramp and the frame is less than the distance between the pressing surface and the frame; the moving table is provided with a boss, which can abut against the pressing surface.

[0017] Optionally, the tightening assembly includes a second driving member, a rotating connector, a bearing, and a bearing mounting base. The rotating connector is rotatably mounted on the bearing mounting base via the bearing. The bearing mounting base is fixedly mounted on the frame. The locking wrench passes through the rotating connector.

[0018] The movable platform is provided with a tailstock, one end of the locking wrench is connected to the tailstock, the tailstock is rotatably connected to the movable platform, and the second driving member drives the rotating connecting member to rotate so as to drive the locking wrench to rotate.

[0019] Optionally, the tightening assembly further includes a timing belt module, a connecting shaft, and a connecting sleeve. The connecting shaft is connected to the output end of the second drive member through the connecting sleeve. The timing belt module includes a driving pulley, a driven pulley, and a timing belt body. The driving pulley is sleeved on the connecting shaft, the driven pulley is sleeved on the rotating connector, and the timing belt body is sleeved on the driving pulley and the driven pulley to make the driven pulley move synchronously with the driving pulley.

[0020] Optionally, the connecting shaft includes a first shaft segment and a second shaft segment, the first shaft segment being provided with a first helical tooth structure, and the second shaft segment being provided with a second helical tooth structure, wherein the first helical tooth structure and the second helical tooth structure mesh with each other;

[0021] The tightening assembly also includes a third elastic element, one end of which is connected to the second shaft segment and the other end of which is connected to the connecting sleeve.

[0022] As can be seen from the above technical solutions, this application has at least the following advantages:

[0023] The cutting tool is positioned by an orientation component, which determines the tool's orientation during the positioning process, thereby determining the tool's installation angle and improving the accuracy of the installation angle. Then, the lifting component is activated, moving the orientation component along a first direction. Simultaneously, the orientation component moves the cutting tool along the first direction to insert it into the chuck, achieving automatic tool installation and reducing operator workload. Finally, the tightening component is activated, rotating the locking wrench so that it engages with the locking screw hole on the chuck to lock the tool, achieving automatic tool locking and improving tool installation efficiency. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings.

[0025] Figure 1 This is a schematic diagram of the overall structure of an automatic knife-locking device disclosed in an embodiment of this application;

[0026] Figure 2 This is a schematic diagram of the structure of the fixing mechanism of an automatic knife locking device disclosed in an embodiment of this application;

[0027] Figure 3 This is a cross-sectional view of the structure of the orientation component of an automatic knife locking device disclosed in an embodiment of this application;

[0028] Figure 4This is a schematic diagram of the structure of an automatic knife locking device with a prominent locking mechanism, as disclosed in an embodiment of this application.

[0029] Figure 5 This is a cross-sectional view of the automatic knife locking device disclosed in an embodiment of this application, highlighting the locking mechanism;

[0030] Figure 6 for Figure 5 Enlarged view of the structure at point A in the middle;

[0031] Figure 7 This is a schematic diagram showing the structure of the telescopic component of an automatic knife locking device disclosed in an embodiment of this application.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Frame; 11. Chuck base;

[0034] 2. Fixing mechanism; 21. Orientation component; 211. Fixing block; 2111. Locking slot; 2112. Mounting slot; 212. Clamping component; 2121. Ball bearing; 2122. First elastic element; 22. Lifting component; 221. First driving component; 222. Lead screw; 223. Lead screw nut;

[0035] 3. Locking mechanism; 31. Locking wrench; 32. Tightening assembly; 321. Second drive component; 322. Rotary connector; 323. Bearing; 324. Bearing holder; 325. Synchronous belt module; 326. Connecting shaft; 3261. First shaft section; 3262. Second shaft section; 327. Connecting sleeve; 328. Third elastic component;

[0036] 4. Telescopic mechanism; 41. Moving platform; 411. Tailstock; 412. Boss; 42. Drive assembly; 421. Fixed base; 422. Second elastic element; 423. Guide block; 4231. Connecting end; 4232. Guide end; 4233. Pressing surface; 4234. Guide slope. Detailed Implementation

[0037] The present application will be further described in detail below with reference to the accompanying drawings.

[0038] This application provides an automatic tool locking device that enables automatic tool installation, reduces the labor intensity of operators, and improves the accuracy and efficiency of tool installation.

[0039] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, and not all of them. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present application. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by the present application.

[0040] The terms "first," "second," "third," "fourth," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in a sequence other than that illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0041] In existing technologies, tool changing for directional cutting tools typically involves manually placing the tool onto the chuck, adjusting the tool's installation angle and height during placement, and visually verifying the installation accuracy before manually locking the tool onto the chuck. This method suffers from low installation efficiency, high operator workload, and difficulty in controlling installation accuracy. To address these issues, this application provides an automatic tool locking device. Please refer to [link to relevant documentation]. Figure 1 The automatic tool locking device includes a frame 1, a fixing mechanism 2, and a locking mechanism 3. Both the fixing mechanism 2 and the locking mechanism 3 are located on the frame 1. The fixing mechanism 2 is used to position the orientation of the tool and install the tool on the chuck. The locking mechanism 3 is used to lock the tool installed on the chuck to the chuck.

[0042] The frame 1 is provided with a chuck seat 11, and the chuck is mounted on the chuck seat 11. In this embodiment, the frame 1 includes a vertical plate and a support plate, the vertical plate being vertically arranged and the support plate being horizontally arranged. The chuck seat 11 is disposed on the support plate, and the chuck is fixed to the frame 1 by the chuck seat 11. The first direction is perpendicular to the second direction, the first direction being vertical and the second direction being horizontal.

[0043] Please see Figure 1 and Figure 2 The fixing mechanism 2 includes a directional component 21 and a lifting component 22. The directional component 21 is used to position the orientation of the tool and is installed on the lifting component 22. The lifting component 22 is set on the frame 1 and can be a lifting structure installed on the frame 1 of the machining table itself. The lifting component 22 drives the directional component 21 to move along a first direction to install or remove the tool from the chuck. It can be understood that the tool is positioned by the directional component 21. During the positioning process, the directional component determines the orientation of the tool, thereby positioning the installation angle of the tool, aiming to improve the accuracy of the tool installation angle. Then, the lifting component 22 is activated to drive the directional component 21 to move along the first direction. The directional component 21 simultaneously drives the tool to move along the first direction to insert the tool into the chuck, realizing automatic installation of the tool into the chuck and reducing the labor intensity of the operator.

[0044] Please see Figure 2 and Figure 3 The orientation component 21 includes a fixing block 211 and a clamping member 212. The clamping member 212 is used to position and clamp the tool. The clamping member 212 is disposed on the fixing block 211, which slides in cooperation with the frame 1. The lifting component 22 drives the fixing block 211 to move so that the clamping member 212 moves synchronously with the fixing block 211. This aims to position the clamping member 212 and clamp the tool towards the chuck to install the tool onto the chuck. Specifically, the fixing block 211 is provided with a locking groove 2111, which restricts tool deflection. The tool has a positioning surface, and the tool is located in the locking groove 2111. The clamping member 212 presses against the positioning surface to fix the tool. It should be noted that the tool is installed vertically, and the positioning surface is located at the upper end of the tool. The positioning surface is set corresponding to the direction of the tool tip to mark the orientation of the tool during installation. At the same time, the positioning surface increases the contact area between the clamping member 212 and the tool. In this embodiment, in order to enable the tool to be directly mounted on the chuck when moving along the first direction, the slot 2111 is set to correspond to the mounting hole of the chuck; when the tool is operated and positioned in the slot 2111, the clamping member 212 positions the tool by pressing against the positioning surface of the tool, and at the same time fixes the tool by the clamping member 212 to control the tool mounting height. Under the drive of the clamping member 212, the tool moves along the first direction and can accurately insert the lower end of the tool into the mounting hole of the chuck, thereby realizing automatic tool mounting.

[0045] In some embodiments, the clamping member 212 may be a gripper, vacuum chuck, or other structure with clamping function to position and clamp the tool's positioning surface. Please refer to [link to relevant documentation]. Figure 3In this embodiment, the clamping member 212 includes a ball bearing 2121 and a first elastic member 2122. The first elastic member 2122 is preferably a spring. One end of the first elastic member 2122 is connected to the ball bearing 2121, and the other end of the first elastic member 2122 is connected to the fixing block 211. The ball bearing 2121 compresses the first elastic member 2122 and abuts against the positioning surface. Two sets of clamping members 212 are provided. The two sets of clamping members 212 are located on both sides of the central axis of the slot 2111 and are symmetrically arranged. The two sets of clamping members 212 work together to position and clamp the tool. The fixing block 211 is provided with a mounting groove 2112. The length direction of the mounting groove 2112 is perpendicular to the length direction of the locking groove 2111. The mounting groove 2112 is used to accommodate the first elastic element 2122 and the ball 2121. The first elastic element 2122 is located in the mounting groove 2112. The end of the first elastic element 2122 away from the ball 2121 is fixed to the fixing block 211 by a locking screw. The ball 2121 is at least partially located in the mounting groove 2112. The ball 2121 contacts the positioning surface so that the ball 2121 compresses the first elastic element 2122 and moves away from the tool. Under the rebound force of the first elastic element 2122, the ball 2121 presses against the positioning surface. The two sets of balls 2121 cooperate to position and clamp the tool.

[0046] It is worth mentioning that after the tool is installed on the chuck and locked by the locking mechanism 3, the tool is fixed in the chuck. The lifting component 22 drives the fixing block 211 away from the chuck seat 11. Since the lower end of the tool is fixed by the chuck seat 11, the upper end of the tool also remains stationary. The ball bearing 2121 disengages from the positioning surface until the upper end of the tool disengages from the locking groove 2111. Under the rebound force of the first elastic member 2122, the ball bearing 2121 moves towards the middle area of ​​the locking groove 2111. When it is necessary to reinstall the tool, simply insert the upper end of the tool into the locking groove 2111. The end of the tool gradually presses against the ball bearing 2121. The ball bearing 2121 compresses the first elastic member 2122 to press against the end of the tool until the ball bearing 2121 contacts and presses against the positioning surface. The structure of spring and ball bearing 2121 enables quick positioning and installation of the tool.

[0047] Please continue reading. Figure 2The lifting assembly 22 includes a first driving component 221, a lead screw 222, a lead screw nut 223, and a linear guide rail. The first driving component 221 is fixedly mounted on the frame 1 via a vertical plate. A fixing block 211 is connected to the lead screw nut 223 and the linear guide rail respectively. The lead screw 222 is vertically mounted. The linear guide rail is fixed to the frame 1 and vertically mounted on one side of the lead screw 222. The fixing block 211 is slidably mounted on the linear guide rail. The linear guide rail is used to reduce the friction between the fixing block 211 and the frame 1. The fixing block 211 is fixedly connected to the lead screw nut 223. The lead screw 222 passes through the lead screw nut 223, and one end of the lead screw 222 is located at the output end of the first driving component 221, while the other end is rotatably mounted on the frame 1. The first driving component 221 drives the lead screw 222 to rotate. The rotation of the lead screw 222 causes the lead screw nut 223 to move along the length direction of the lead screw 222. The movement of the lead screw nut 223 synchronously drives the fixed block 211 to move, thereby realizing the installation of the tool on the chuck along the first direction. The first driving component 221 can be a servo motor.

[0048] Please see Figures 4 to 6 The locking mechanism 3 includes a locking wrench 31 and a tightening assembly 32. The tightening assembly 32 is mounted on the frame 1. The tightening assembly 32 drives the locking wrench 31 to rotate and engage with the locking screw hole of the chuck to lock the tool. It is understood that in some embodiments, the locking wrench 31 contacts the locking screw hole of the chuck. By rotating the locking wrench 31 to lock the tool to the chuck, the tightening assembly 32 is activated to drive the locking wrench 31 to rotate, so that the locking wrench 31 engages with the locking screw hole of the chuck to lock the tool, thereby realizing automatic tool locking operation and further improving the efficiency of tool installation. Specifically, the tightening assembly 32 includes a second drive member 321, a rotary connector 322, a bearing 323, and a bearing 323 fixing seat 421. The second drive member 321 may be a servo motor. The rotary connector 322 is rotatably mounted on the bearing 323 fixing seat 421 via the bearing 323. The bearing 323 fixing seat 421 is fixedly mounted on the frame 1 via a vertical plate. The locking wrench 31 passes through the rotary connector 322. The second drive member 321 drives the rotary connector 322 to rotate, thereby driving the locking wrench 31 to rotate. To facilitate easier disassembly and assembly when replacing or repairing components such as the locking wrench 31, the tightening assembly 32 also includes a timing belt module 325, a connecting shaft 326, and a connecting sleeve 327. The connecting shaft 326 is connected to the output end of the second drive component 321 through the connecting sleeve 327. The timing belt module 325 includes a drive pulley, a driven pulley, and a timing belt body. The drive pulley is sleeved on the connecting shaft 326, the driven pulley is sleeved on the rotating connector 322, and the timing belt body is sleeved on the drive pulley and the driven pulley to enable the driven pulley to move synchronously with the drive pulley, effectively reducing direct contact between parts during transmission and reducing mechanical wear. At the same time, it allows for more flexible arrangement of the second drive component 321 and other components, making it suitable for certain space-constrained scenarios.

[0049] Understandably, the output end of the second drive component 321 drives the drive wheel to rotate, which in turn drives the driven wheel to rotate via the synchronous belt body. The rotation of the driven wheel then drives the rotating connector 322 to rotate. Under the action of the bearing 323, the rotating connector 322 is equivalent to the bearing 323 fixing seat 421 and the upright plate rotating. The rotation of the rotating connector 322 causes the locking wrench 31 to rotate synchronously, which is intended to cooperate with the locking screw hole of the chuck to lock the tool.

[0050] Please see Figure 6 Furthermore, to achieve consistent tool locking, the connecting shaft 326 includes a first shaft segment 3261 and a second shaft segment 3262. The first shaft segment 3261 is located near the drive wheel and is fixedly connected to it. The second shaft segment 3262 is located near the second drive member 321 and is connected to the output end of the second drive member 321 via a connecting sleeve 327. The first shaft segment 3261 is provided with a first helical tooth structure, and the second shaft segment 3262 is provided with a second helical tooth structure. The first helical tooth structure and the second helical tooth structure mesh with each other. The tightening assembly 32 also includes a third elastic member 328, which is preferably a spring. One end of the third elastic member 328 is connected to the second shaft segment 3262, and the other end is connected to the connecting sleeve 327. The second drive unit 321 activates, driving the connecting sleeve 327 and the second shaft segment 3262 to rotate. Under the elastic pressure of the third elastic element 328 and the action of the meshing first and second helical tooth structures, the first shaft segment 3261 rotates synchronously. The rotation of the first shaft segment 3261 drives the rotating connector 322 and the locking wrench 31 to rotate via the synchronous belt module 325. When the locking wrench 31 locks the chuck, the first shaft segment 3261 does not rotate, while the second shaft segment 3262 continues to rotate under the action of the second drive unit 321. The meshing first and second helical tooth structures generate tension to compress the third elastic element 328, causing the second shaft segment 3262 to retract. Subsequently, the second shaft segment 3262 idles, preventing the locking wrench 31 from applying excessive force when locking the chuck, thus ensuring consistent tightening force and consistent tool locking degree.

[0051] Please see Figure 4 and Figure 7In this embodiment, the locking wrench 31 is away from the locking screw hole of the chuck. To enable the locking wrench 31 to automatically move toward the locking screw hole of the chuck, the automatic locking device also includes a telescopic mechanism 4. The telescopic mechanism 4 is disposed on the frame 1. The telescopic mechanism 4 drives the locking wrench 31 to move toward or away from the chuck, so that the locking wrench 31 contacts the locking screw hole of the chuck, or separates the locking wrench 31 from the locking screw hole of the chuck. Specifically, the telescopic mechanism 4 includes a moving platform 41 and a drive assembly 42. The moving platform 41 is slidably disposed on the frame 1 along the second direction, and the sliding direction of the moving platform 41 is perpendicular to the direction of movement of the lifting assembly 22. The moving platform 41 is provided with a tailstock 411. One end of the locking wrench 31 is connected to the tailstock 411, and the tailstock 411 is rotatably connected to the moving platform 41. The drive assembly 42 drives the moving platform 41 to move closer to or away from the chuck, so that the locking wrench 31 moves closer to or away from the locking screw hole on the chuck.

[0052] Please see Figure 6 and Figure 7 The drive assembly 42 includes a fixed base 421, a second elastic element 422, and a guide block 423. The fixed base 421 is disposed on one side of the moving platform 41 and fixedly installed on the frame 1. The second elastic element 422 is preferably a spring. The two ends of the second elastic element 422 are respectively connected to the fixed base 421 and the moving platform 41. The guide block 423 is disposed on the other side of the moving platform 41 and slides with the frame 1. The guide block 423 has a connecting end 4231 and a guiding end 4232. The connecting end 4231 is connected to the fixed block 211. The guiding end 4232 presses against the moving platform 41 to compress or reset the second elastic element 422. When the guide block 423 moves in the first direction, the guiding end 4232 releases the pressure on the moving platform 41, and the second elastic element 422 rebounds to drive the moving platform 41 to move toward the chuck. It is worth mentioning that the lifting component 22 drives the fixed block 211 to move. Since the guide block 423 is fixed to the fixed block 211, under the drive of the lifting component 22, while the fixed block 211 moves in the first direction, the guide block 423 releases its pressure on the moving table 41, and the second elastic element 422 rebounds to drive the moving table 41 to move toward the chuck. That is, the up and down movement of the tool and the extension and retraction movement of the locking wrench 31 can be realized simultaneously through one driving component.

[0053] Specifically, the moving platform 41 is provided with a boss 412, which is used to contact and press against the guide end 4232; the guide end 4232 is provided with a pressing surface 4233 and a guide slope 4234, the guide slope 4234 is located above the pressing surface 4233, the distance between the guide slope 4234 and the frame 1 is less than the distance between the pressing surface 4233 and the frame 1, and the end of the guide slope 4234 away from the pressing surface 4233 gradually tilts towards the vertical plate, and the boss 412 can abut against the pressing surface 4233. Normally, the boss 412 contacts and presses against the pressing surface 4233, and the moving stage 41 cooperates with the fixed seat 421 to compress the second elastic element 422. At this time, the second elastic element 422 is in a compressed state. When the fixed block 211 moves downward to install the tool into the chuck, the guide block 423 moves downward synchronously. The pressing of the boss 412 against the pressing surface 4233 switches to pressing against the guide inclined surface 4234. Since the distance between the guide inclined surface 4234 and the frame 1 is less than the distance between the pressing surface 4233 and the frame 1, the guide inclined surface 4234 provides movement space for the moving stage 41 and releases the limitation on the moving stage 41. The moving stage 41 moves towards the chuck under the rebound force of the second elastic element 422, so that the moving stage 41 drives the locking wrench 31 and the rotating connecting piece 322 to slide and move towards the chuck. Then, the locking wrench 31 contacts the locking screw hole of the chuck, which makes it easy to rotate the locking wrench 31 to lock the tool into the chuck.

[0054] The automatic tool installation process is as follows: First, the end of the tool with the positioning surface is inserted into the locking slot 2111. The end of the tool gradually presses against the ball 2121. The ball 2121 compresses the first elastic element 2122 to press against the end of the tool until the ball 2121 contacts and presses against the positioning surface. The structure of spring and ball 2121 achieves rapid positioning and installation of the tool. Second, the first driving element 221 drives the lead screw 222 to rotate. The rotation of the lead screw 222 drives the lead screw nut 223 and the fixing block 211 to move, thereby installing the tool in the chuck. At the same time, the movement of the fixing block 211 synchronously drives the movement of the guide block 423, and the boss 412 and the pressing surface 42... When the pressure switch 33 is switched to the pressure with the guide slope 4234, the limiting of the moving table 41 is released. Under the rebound force of the second elastic member 422, the moving table 41 moves towards the chuck. The moving table 41 drives the locking wrench 31 and the rotating connector 322 to slide and move towards the chuck, so that the locking wrench 31 contacts the locking screw hole of the chuck. Finally, the output end of the second drive member 321 drives the drive wheel to rotate, which drives the driven wheel to rotate through the synchronous belt body. The rotation of the driven wheel then drives the rotating connector 322 to rotate and the locking wrench 31 to rotate synchronously, so that the locking wrench 31 cooperates with the locking screw hole of the chuck to lock the tool and fix the tool to the chuck.

[0055] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. An automatic knife locking device, characterized in that, include: A frame, on which a chuck seat is provided, and a chuck is mounted on the chuck seat; A fixing mechanism includes a directional component and a lifting component, wherein the directional component is disposed on the lifting component and is used to position the orientation of the cutting tool; The lifting assembly is mounted on the frame, and the lifting assembly drives the orientation assembly to move so as to install or remove the tool from the chuck. The locking mechanism includes a locking wrench and a tightening assembly. The tightening assembly is disposed on the frame and drives the locking wrench to rotate. The locking wrench is used to engage with the locking screw hole on the chuck to lock the tool.

2. The automatic knife locking device according to claim 1, characterized in that, The orientation component includes a fixing block and a clamping member, the clamping member being disposed on the fixing block, and the fixing block being slidably engaged with the frame; The fixing block is provided with a locking groove, the cutting tool has a positioning surface, the cutting tool is located in the locking groove, and the clamping member presses against the positioning surface to fix the cutting tool.

3. The automatic knife locking device according to claim 2, characterized in that, The clamping member includes a ball and a first elastic element. One end of the first elastic element is connected to the ball, and the other end of the first elastic element is connected to the fixing block. The ball compresses the first elastic element and presses against the positioning surface.

4. An automatic knife locking device according to claim 2, characterized in that, The lifting assembly includes a first driving component, a lead screw, a lead screw nut, and a linear guide rail. The first driving component is fixedly mounted on the frame. The fixing block is connected to the linear guide rail and the lead screw nut respectively. The lead screw passes through the lead screw nut, and one end of the lead screw is connected to the output end of the first driving component, while the other end is rotatably mounted on the frame through a lead screw seat.

5. An automatic knife locking device according to claim 2, characterized in that, It also includes a telescopic mechanism, which includes a moving platform and a drive assembly. The moving platform is slidably disposed on the frame, and the sliding direction of the moving platform is perpendicular to the direction of movement of the lifting assembly. One end of the locking wrench is disposed on the moving platform. The drive assembly drives the moving platform to move closer to or away from the chuck, so that the locking wrench moves closer to or away from the locking screw hole on the chuck.

6. An automatic knife-locking device according to claim 5, characterized in that, The drive assembly includes a fixed base, a second elastic element, and a guide block. The fixed base is disposed on one side of the movable stage and fixedly installed on the frame. The two ends of the second elastic element are respectively connected to the fixed base and the movable stage. The guide block is disposed on the other side of the movable stage and slides with the frame. The guide block has a connecting end and a guiding end. The connecting end is connected to the fixed block, and the guiding end presses against the moving platform to compress or reset the second elastic element.

7. An automatic knife locking device according to claim 6, characterized in that, The guide end is provided with a pressing surface and a guide slope, and the distance between the guide slope and the frame is less than the distance between the pressing surface and the frame; the moving platform is provided with a boss, and the boss can abut against the pressing surface.

8. An automatic knife locking device according to claim 5, characterized in that, The tightening assembly includes a second driving member, a rotating connector, a bearing, and a bearing mounting base. The rotating connector is rotatably mounted on the bearing mounting base via the bearing. The bearing mounting base is fixedly mounted on the frame. The locking wrench passes through the rotating connector. The movable platform is provided with a tailstock, one end of the locking wrench is connected to the tailstock, the tailstock is rotatably connected to the movable platform, and the second driving member drives the rotating connecting member to rotate so as to drive the locking wrench to rotate.

9. An automatic knife locking device according to claim 8, characterized in that, The tightening assembly further includes a timing belt module, a connecting shaft, and a connecting sleeve. The connecting shaft is connected to the output end of the second drive component through the connecting sleeve. The timing belt module includes a driving pulley, a driven pulley, and a timing belt body. The driving pulley is sleeved on the connecting shaft, the driven pulley is sleeved on the rotating connector, and the timing belt body is sleeved on the driving pulley and the driven pulley to make the driven pulley move synchronously with the driving pulley.

10. An automatic knife locking device according to claim 9, characterized in that, The connecting shaft includes a first shaft segment and a second shaft segment. The first shaft segment is provided with a first helical tooth structure, and the second shaft segment is provided with a second helical tooth structure. The first helical tooth structure and the second helical tooth structure mesh with each other. The tightening assembly also includes a third elastic element, one end of which is connected to the second shaft segment and the other end of which is connected to the connecting sleeve.

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