Tool changing device of cutting device

Abstract

The tool changing device of the cutting device comprises a center shaft frame and a blade, a fixing ring is integrally arranged on the outer wall of the center shaft frame, the blade is connected to the outer wall of the blade in a sliding mode and makes contact with the side wall of the fixing ring in an attached mode, a sliding rod is connected to the outer wall of a side plate in a sliding mode, and the end of the sliding rod is fixedly connected with a limiting plate. And the limiting plate is slidably connected into the limiting groove and makes contact with the inner wall of the limiting groove, and an elastic mechanism for driving the limiting plate to tightly abut against the interior of the limiting groove is installed on the outer wall of the sliding rod. The limiting plate and the limiting groove are matched with each other, continuous pressure is provided through the spring, the limiting plate is made to be attached to the interior of the limiting groove in the screw all the time, vibration in the cutting process is effectively dispersed through the multiple limiting structures, the screw is prevented from loosening due to vibration, it is guaranteed that the blade is kept stable and does not deviate in the high-strength cutting process, and the cutting efficiency is improved. And the blade fixing reliability is remarkably improved, and the cutting stability and precision are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tool changing devices, in particular to a tool changing device for a cutting device. Background Art

[0002] The tool changer of the cutting device is a structural system specially used for convenient replacement of cutting tools. Its main function is to simplify the tool removal and installation process to improve work efficiency, reduce downtime and reduce operating difficulty.

[0003] In the prior art, the blade is mainly mounted on a fixed ring outside the central axis by screws. In this way, the blade can be quickly disassembled and replaced, but the screw fixing method has certain defects. For example, when cutting a workpiece with higher hardness, the blade or the workpiece is prone to slight displacement or deformation during cutting, thereby causing resonance. The generated vibration will be transmitted to the connection between the screw and the fixed ring. The vibration will gradually loosen the screw, making the connection between the screw and the fixed ring unstable, causing the blade to loosen or even fall off, affecting the cutting accuracy and safety. Therefore, it is necessary to propose a tool changing device for a cutting device to address the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a tool changing device for a cutting device.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A tool changing device for a cutting device comprises a central axis frame and a blade, the outer wall of the central axis frame is integrally provided with a fixing ring, the blade is slidably connected to the outer wall of the blade and is in close contact with the side wall of the fixing ring, the outer wall of the fixing ring is provided with multiple groups of positioning holes, the outer wall of the blade is threaded with screws, the screws are threadedly connected to the positioning holes, the side wall of the fixing ring is fixedly connected to multiple groups of side plates, the number of multiple groups of side plates is consistent with the number of screws, and the outer walls of multiple groups of screws are all provided with limiting grooves, the outer walls of the side plates are slidably connected with a sliding rod, the end of the sliding rod is fixedly connected to the limiting plate, the limiting plate is slidably connected in the limiting groove and contacts with the inner wall of the limiting groove, and the outer wall of the sliding rod is installed with an elastic mechanism that drives the limiting plate to tightly abut against the limiting groove.

[0007] Preferably, the elastic mechanism includes a limit block fixedly connected to the end of the slide rod, and the outer wall of the slide rod is sleeved with a spring, one end of the spring is fixedly connected to the limit block, and the other end of the spring is fixedly connected to the slide rod.

[0008] Preferably, the inner wall of the limiting groove is circular, the inner and outer walls of the limiting plate are both arc-shaped, the curvature of the inner wall of the limiting plate matches the curvature of the inner wall of the limiting groove, and the two are in close contact.

[0009] Preferably, the radius of the limiting block is larger than the radius of the sliding rod, the width of the limiting plate is consistent with the inner diameter of the limiting groove, and the side wall of the limiting plate is in contact with the inner wall of the limiting groove.

[0010] Preferably, the outer wall of the blade is provided with two groups of guide grooves, the outer wall of the fixing ring is fixedly connected with two groups of guide shafts, and the positions of the two groups of guide shafts correspond to the positions of the two groups of guide grooves.

[0011] Preferably, the guide shaft is slidably connected in the guide groove, and the outer wall of the guide shaft contacts the inner wall of the guide groove.

[0012] The utility model has the following beneficial effects:

[0013] 1. The utility model adopts the cooperation between the limit plate and the limit groove, and provides continuous pressure through the spring, so that the limit plate is always fitted in the limit groove on the screw. The multiple limit structures effectively disperse the vibration during the cutting process, prevent the screw from loosening due to vibration, ensure that the blade remains stable and does not deviate during high-intensity cutting, significantly improve the reliability of blade fixation, and enhance the smoothness and accuracy of cutting.

[0014] 2. The utility model uses the automatic alignment structure of the guide groove and the guide shaft to automatically align the blade with the fixed position during the installation process to avoid tilting or offset. When the blade needs to be replaced, it is only necessary to lift the limit plate and release the blade screw to quickly replace the new blade. The operation is simple, no cumbersome tools are required, and the blade change time is shortened. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a tool changing device for a cutting device proposed in the present invention;

[0016] Figure 2 for Figure 1 Structural diagram.

[0017] Figure 3 for Figure 2 Schematic diagram of the structure of the middle limit plate, screws, springs and other components.

[0018] In the figure: 1. Center axis frame; 2. Fixing ring; 3. Positioning hole; 4. Screw; 5. Guide shaft; 6. Guide groove; 7. Blade; 8. Side plate; 9. Slide rod; 10. Spring; 11. Limit block; 12. Limit groove; 13. Limit plate. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Reference Figure 1-3 , a tool changing device for a cutting device includes a central axis frame 1 and a blade 7. The outer wall of the central axis frame 1 is integrally provided with a fixing ring 2. The blade 7 is slidably connected to the outer wall of the blade 7 and is in close contact with the side wall of the fixing ring 2. The outer wall of the fixing ring 2 is provided with multiple groups of positioning holes 3. The outer wall of the blade 7 is threaded with screws 4. The screws 4 are threadedly connected to the positioning holes 3. The side wall of the fixing ring 2 is fixedly connected with multiple groups of side plates 8. The number of multiple groups of side plates 8 is the same as the number of screws 4. The outer walls of the multiple groups of screws 4 are all provided with limiting grooves 12. The outer wall of the side plate 8 is slidably connected with a sliding rod 9. The end of the sliding rod 9 is fixedly connected to the limiting plate 13. The limiting plate 13 is slidably connected to the limiting groove 12 and contacts the inner wall of the limiting groove 12. The outer wall of the sliding rod 9 is installed with an elastic mechanism that drives the limiting plate 13 to tightly abut against the limiting groove 12;

[0021] The multiple fixing devices formed by the limiting plate 13 and the limiting groove 12 ensure that the screw 4 is always in a stable state during the cutting process, further improving the fixing accuracy of the blade 7. This enhanced fixing effect ensures the smoothness of the cutting and prevents the blade 7 from shifting or shaking, thereby improving the cutting accuracy and operational safety.

[0022] The elastic mechanism includes a limit block 11 fixedly connected to the end of the slide rod 9, and a spring 10 is provided on the outer wall of the slide rod 9. One end of the spring 10 is fixedly connected to the limit block 11, and the other end of the spring 10 is fixedly connected to the slide rod 9. The inner wall of the limit groove 12 is circular, and the inner and outer walls of the limit plate 13 are both arc-shaped. The curvature of the inner wall of the limit plate 13 matches the curvature of the inner wall of the limit groove 12, and the two fit closely and contact each other; the spring 10 provides continuous elastic pressure, so that the limit plate 13 is always tightly fitted in the limit groove 12. Even if vibration occurs during the cutting process, the limit plate 13 can firmly support the screw 4, effectively reduce the loosening caused by vibration, and maintain the stability of the screw 4 in the working state.

[0023] The radius of the limit block 11 is larger than the radius of the slide rod 9, the width of the limit plate 13 is consistent with the inner diameter of the limit groove 12, the side wall of the limit plate 13 is in contact with the inner wall of the limit groove 12, and two groups of guide grooves 6 are opened on the outer wall of the blade 7. Two groups of guide shafts 5 are fixedly connected to the outer wall of the fixing ring 2. The positions of the two groups of guide shafts 5 correspond to the positions of the two groups of guide grooves 6. The guide shaft 5 is slidably connected in the guide groove 6, and the outer wall of the guide shaft 5 is in contact with the inner wall of the guide groove 6.

[0024] In the present invention, when the device is used specifically: the blade 7 is slidably connected to the outer wall of the central axis frame 1 so that it fits against the side wall of the fixing ring 2, and the two sets of guide grooves 6 preset on the outer wall of the blade 7 are aligned with the two sets of guide shafts 5 on the outer wall of the fixing ring 2. Through the cooperation of the guide grooves 6 and the guide shafts 5, the blade 7 is automatically aligned with the fixed position during the installation process to avoid offset or tilt, ensuring the accuracy and symmetry of the installation. After the blade 7 and the fixing ring 2 are completely fitted together, the screw 4 on the outer wall of the blade 7 is rotated so that the screw 4 is threaded into the positioning hole 3 of the fixing ring 2 to fix the blade 7 on one side of the fixing ring 2. This step stably fixes the blade 7 on the central axis frame 1 to ensure that it will not loosen or fall off during work.

[0025] During the rotation of the screw 4, the limit block 11 at its corresponding position is lifted upward, driving the limit plate 13 to slide upward until the limit slot 12 on the screw 4 slides to a position that matches the position of the limit plate 13. Release your hand, and under the action of the spring 10 to restore, drive the limit plate 13 to slide into the limit slot 12. The spring 10 provides continuous pressure to ensure that the limit plate 13 is always tightly fitted in the limit slot 12, reducing the risk of loosening of the screw 4 under vibration. The multiple limiting structures of the limit plate 13 and the limit slot 12 keep the screw 4 stable, avoid the blade 7 from deflecting or shaking, and improve the stability and accuracy of cutting.

[0026] When the blade 7 needs to be replaced, lift the limit plate 13 upwards to drive the limit plate 13 to separate from the limit slot 12, disengage the screw from the positioning hole 3, release the fixation of the blade 7, and allow the blade 7 to smoothly slide out of the matching position of the guide slot 6 and the guide shaft 5. The new blade 7 can be installed and fixed according to the above steps, and can be quickly reset to complete the replacement operation.

[0027] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A blade changing device for a cutting device, comprising a central axis frame (1) and a blade (7), characterized in that: The outer wall of the central axis frame (1) is integrally provided with a fixing ring (2), the blade (7) is slidably connected to the outer wall of the blade (7) and is in close contact with the side wall of the fixing ring (2), the outer wall of the fixing ring (2) is provided with multiple groups of positioning holes (3), the outer wall of the blade (7) is threaded with screws (4), and the screws (4) are threadedly connected in the positioning holes (3), the side wall of the fixing ring (2) is fixedly connected with multiple groups of side plates (8), the number of the multiple groups of side plates (8) is the same as the number of the screws (4), and the outer walls of the multiple groups of screws (4) are all provided with limiting grooves (12), the outer wall of the side plate (8) is slidably connected with a sliding rod (9), the end of the sliding rod (9) is fixedly connected to the limiting plate (13), the limiting plate (13) is slidably connected in the limiting groove (12) and is in contact with the inner wall of the limiting groove (12), and the outer wall of the sliding rod (9) is installed with an elastic mechanism that drives the limiting plate (13) to tightly abut against the limiting groove (12).

2. A tool changing device for a cutting device according to claim 1, characterized in that: The elastic mechanism comprises a limit block (11) fixedly connected to the end of the slide rod (9); a spring (10) is sleeved on the outer wall of the slide rod (9); one end of the spring (10) is fixedly connected to the limit block (11), and the other end of the spring (10) is fixedly connected to the slide rod (9).

3. The tool changing device of a cutting device according to claim 2, characterized in that: The inner wall of the limiting groove (12) is circular, and the inner and outer walls of the limiting plate (13) are both arc-shaped. The curvature of the inner wall of the limiting plate (13) matches the curvature of the inner wall of the limiting groove (12), and the two are in close contact.

4. The tool changing device of a cutting device according to claim 3, characterized in that: The radius of the limiting block (11) is greater than the radius of the sliding rod (9), the width of the limiting plate (13) is consistent with the inner diameter of the limiting groove (12), and the side wall of the limiting plate (13) is in contact with the inner wall of the limiting groove (12).

5. The tool changing device of a cutting device according to claim 4, characterized in that: Two groups of guide grooves (6) are formed on the outer wall of the blade (7), and two groups of guide shafts (5) are fixedly connected to the outer wall of the fixing ring (2), and the positions of the two groups of guide shafts (5) correspond to the positions of the two groups of guide grooves (6).

6. The tool changing device of a cutting device according to claim 5, characterized in that: The guide shaft (5) is slidably connected in the guide groove (6), and the outer wall of the guide shaft (5) contacts the inner wall of the guide groove (6).

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