Intelligent tool changing device for milling machine
By designing a protective mechanism on the milling machine, and utilizing components such as a fixed frame, rollers, and motor, the problem of bumps and knocks during tool replacement is solved, enabling safe tool replacement and reducing damage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHUHAI XUNHONG PRECISION MASCH CO LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-08-04
AI Technical Summary
In existing technologies, when changing tools on a milling machine, the tools are easily bumped and damaged.
A smart tool changing device for milling machines was designed, which includes a protective mechanism. It uses components such as a fixed frame, rollers, moving belt, bumps and motors to protect the tool through clamping and buffering mechanisms to avoid collisions.
This effectively reduces the risk of damage to the cutting tools during installation, and improves the safety and reliability of tool replacement.
Smart Images
Figure CN224587571U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of tool changing devices, and in particular to an intelligent tool changing device for milling machines. Background Technology
[0002] A milling machine is a machine tool that uses milling cutters to process various surfaces of a workpiece. The main motion is usually the rotation of the milling cutter, while the movement of the workpiece and the milling cutter is the feed motion. It can process planes, grooves, various curved surfaces, gears, etc. During milling, the milling cutter may overheat, requiring a tool changing device to replace it. Nowadays, a robotic arm can be used to hold and change tools. However, when installing tools, there is a lack of buffering between the robotic arm and the milling machine tool mounting point, making the tool susceptible to impact and damage. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an intelligent tool changing device for milling machines, so as to solve the problem that the tools in the prior art are easily bumped and damaged.
[0004] In view of this, the present invention provides an intelligent tool changing device for a milling machine, including a mounting plate, wherein a fixing frame is fixedly mounted at both ends of the mounting plate, and a protective mechanism is provided on the fixing frame;
[0005] The protective mechanism includes several mounting slots, two rollers, a moving belt, a protrusion, a mounting frame, a first mounting shaft, a first bevel gear, two second mounting shafts, and a second bevel gear. The mounting slots are formed on the top of the fixed frame. The two rollers are rotatably mounted on the walls of their respective mounting slots. The moving belt is mounted between the two corresponding rollers. The protrusion is fixedly mounted on the outer wall of the moving belt. The first mounting shaft is fixedly mounted on one side of the corresponding roller. The mounting frame is fixedly mounted on one side of the outer wall of the fixed frame. The first bevel gear is fixedly mounted on one end of the first mounting shaft and is located inside the mounting frame. The two second mounting shafts are rotatably mounted on the bottom of the inner wall of the mounting frame and are located on both sides inside the mounting frame. The second bevel gears are fixedly mounted on both ends of the second mounting shafts and mesh with the corresponding first bevel gears.
[0006] Optionally, a motor is fixedly installed on the top of the mounting frame, the output end of the motor extends into the interior of the mounting frame, a rotating shaft is fixedly installed on the output end of the motor, a first turntable is fixedly installed on the outer wall of the rotating shaft, and a third bevel gear is fixedly installed on one end of the rotating shaft.
[0007] Optionally, the third bevel gear meshes with the corresponding second bevel gear.
[0008] Optionally, a rotating groove and a moving hole are provided on one side of the outer wall of the fixed frame. A lead screw is rotatably installed at both ends of the inner wall of the moving hole. The top end of the lead screw extends into the rotating groove. A second turntable is fixedly installed at the top end of the lead screw. The second turntable and the first turntable are connected by a belt.
[0009] Optionally, a movable frame is slidably installed on the inner wall of the movable hole, and the movable frame is threadedly connected to the outer wall of the lead screw through a threaded hole thereon. An electric push rod is fixedly installed on the inner wall of the movable frame, and a connecting rod is fixedly installed at the output end of the electric push rod. Support members are fixedly installed at both ends of the connecting rod. Connecting frames are fixedly installed on both sides of the movable frame, and an mounting frame is fixedly installed at one end of the connecting frame.
[0010] Optionally, a plurality of limiting posts are fixedly installed on one side of the mounting bracket, a movable plate is slidably installed on the outer wall of the limiting posts, a spring is fixedly installed on the outer wall of the limiting posts, the other end of the spring is fixedly installed on the inner wall of the hole on the movable plate that connects with the limiting posts, and a fixing pad is fixedly installed on one side of the movable plate.
[0011] Optionally, the support member is located on the side corresponding to the movable plate.
[0012] As can be seen from the above technical solutions, the embodiments of this utility model have the following advantages:
[0013] 1. This utility model discloses an intelligent milling machine tool changing device. By setting a protective mechanism, when changing tools, the fixing pad inside the fixing frame clamps the tool, and the mounting plate moves upward, causing the tool to move upward. At this time, the protrusion is located at the top of the fixing frame, between the fixing frame and the tool mounting part on the milling machine, so that the tool does not completely contact the tool mounting part on the milling machine, thus buffering and protecting the tool when it moves upward. Then, the motor starts and drives the moving belt to rotate and move the position, causing the protrusion to move towards the side wall of the fixing frame. At the same time, the motor drives the lead screw to rotate, thereby causing the fixing pad to move upward inside the fixing frame. When the protrusion moves to the side wall of the fixing frame, the tool is attached to the tool mounting part on the milling machine. This can effectively protect the tool when installing it and reduce the possibility of damage from bumps during tool installation.
[0014] 2. The present invention relates to an intelligent tool changing device for a milling machine, wherein both the moving belt and the moving frame are driven by motors, which can make the moving belt and the moving frame rotate or move more synchronously.
[0015] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings:
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is an installation diagram of the mounting plate of this utility model;
[0019] Figure 3 This is a sectional view of the mounting frame of this utility model;
[0020] Figure 4 This is an installation diagram of the movable frame of this utility model;
[0021] Figure 5 This is a diagram showing the positions of the support component and the movable plate of this utility model.
[0022] Explanation of reference numerals in the attached drawings: 1. Mounting plate; 2. Fixing frame; 3. Mounting groove; 4. Roller; 5. Moving belt; 6. Protrusion; 7. Mounting frame; 8. First mounting shaft; 9. First bevel gear; 10. Second mounting shaft; 11. Second bevel gear; 14. Motor; 15. Third bevel gear; 16. First turntable; 17. Second turntable; 18. Lead screw; 19. Moving frame; 20. Electric push rod; 201. Connecting frame; 21. Connecting rod; 22. Support component; 23. Mounting frame; 24. Limiting post; 25. Moving plate; 26. Fixing pad; 27. Cylinder; 28. Rotating base. Detailed Implementation
[0023] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.
[0024] The following describes in detail, with reference to the accompanying drawings, an embodiment of the present invention: an intelligent tool changing device for a milling machine.
[0025] Example 1
[0026] For easier understanding, please refer to Figures 1 to 5An embodiment of the intelligent tool changing device for a milling machine provided by this utility model includes a mounting plate 1, with fixed frames 2 fixedly mounted at both ends of the mounting plate 1. A protective mechanism is provided on the fixed frames 2. The protective mechanism includes several mounting grooves 3, two rollers 4, a moving belt 5, a protrusion 6, a mounting frame 7, a first mounting shaft 8, a first bevel gear 9, two second mounting shafts 10, and a second bevel gear 11. Several mounting grooves 3 are opened on the top of the fixed frame 2. The two rollers 4 are rotatably mounted on the groove walls of the corresponding mounting grooves 3. The moving belt 5 is installed between the two corresponding rollers 4. The protrusion 6 is fixedly mounted on the outer wall of the moving belt 5. The first mounting shaft 8 is fixedly mounted on one side of the corresponding roller 4. The mounting frame 7 is fixedly mounted on one side of the outer wall of the fixed frame 2. The first bevel gear 9 is fixedly mounted on one end of the first mounting shaft 8 and is located inside the mounting frame 7. The two second mounting shafts 10 are rotatably mounted on the bottom of the inner wall of the mounting frame 7 and are located on both sides inside the mounting frame 7. The second bevel gear 11 is fixedly mounted on both ends of the second mounting shaft 10 and meshes with the corresponding first bevel gear 9.
[0027] It should be noted that by setting up a protective mechanism, when changing tools, the fixing pad 26 inside the fixing frame 2 clamps the tool, and the mounting plate 1 moves upward, causing the tool to move upward. At this time, the protrusion 6 is located at the top of the fixing frame 2, between the fixing frame and the tool mounting part on the milling machine, so that the tool does not completely contact the tool mounting part on the milling machine, thus buffering and protecting the tool when it moves upward. Afterward, the motor 14 starts and drives the moving belt 5 to rotate and move its position, causing the protrusion 6 to move towards the side wall of the fixing frame 2. At the same time, the motor 14 drives the lead screw 18 to rotate, thereby causing the fixing pad 26 to move upward inside the fixing frame 2. When the protrusion 6 moves to the side wall of the fixing frame 2, the tool is attached to the tool mounting part on the milling machine, which can effectively protect the tool when installing it and reduce the possibility of damage from bumps during tool installation. By setting a second bevel gear 11 to drive the first bevel gear 9 on the roller 4 and the third bevel gear 15 on the motor 14, the moving belts 5 on both sides of the fixing frame 2 rotate and move in the same direction.
[0028] In some embodiments, such as Figure 3 , Figure 4 , Figure 5 As shown, a motor 14 is fixedly installed on the top of the mounting frame 7. The output end of the motor 14 extends into the interior of the mounting frame 7. A rotating shaft is fixedly installed on the output end of the motor 14. A first turntable 16 is fixedly installed on the outer wall of the rotating shaft. A third bevel gear 15 is fixedly installed on one end of the rotating shaft. The third bevel gear 15 meshes with the corresponding second bevel gear 11.
[0029] It should be noted that when the motor 14 starts, it drives the third bevel gear 15 and the first turntable 16 to rotate. The third bevel gear 15 drives the first bevel gear 9 and the first mounting shaft 8 to rotate through the transmission of the second mounting shaft 10 and the second bevel gear 11, thereby driving the roller 4 connected to the first mounting shaft 8 to rotate, and causing the moving belt 5 installed on the roller 4 to move.
[0030] In this example, when the protrusion 6 on the moving belt 5 moves toward the side of the fixed frame 2, one side of the protrusion 6 moves toward the inner circle of the fixed frame 2, and the other side of the protrusion 6 moves toward the outer circle of the fixed frame 2.
[0031] In this example, the protrusion 6 can be a rubber block, which can block the tool between the fixed frame 2 and the tool mounting part in the milling machine when the tool is installed, so that after the tool moves to the corresponding position, the tool does not contact the inner wall of the tool mounting part.
[0032] In this example, both the moving belt 5 and the moving frame 19 are driven by the motor 14, which can make the moving belt 5 and the moving frame 19 rotate or move more synchronously.
[0033] In some embodiments, such as Figure 4 As shown, a rotating groove and a moving hole are provided on one side of the outer wall of the fixed frame 2. A lead screw 18 is rotatably installed at both ends of the inner wall of the moving hole. The top end of the lead screw 18 extends into the rotating groove. A second turntable 17 is fixedly installed at the top end of the lead screw 18. The second turntable 17 and the first turntable 16 are connected by a belt. A moving frame 19 is slidably installed on the inner wall of the moving hole. The moving frame 19 is threadedly connected to the outer wall of the lead screw 18 through a threaded hole. An electric push rod 20 is fixedly installed on the inner wall of the moving frame 19. A connecting rod 21 is fixedly installed at the output end of the electric push rod 20. Support members 22 are fixedly installed at both ends of the connecting rod 21. Connecting frames 201 are fixedly installed on both sides of the moving frame 19. A mounting frame 23 is fixedly installed at one end of the connecting frame 201.
[0034] It should be noted that when the motor 14 starts and drives the protrusion 6 to move to the side of the fixed frame 2, it also drives the first turntable 16 to rotate, thereby driving the lead screw 18 to rotate, causing the moving frame 19 to move downward, driving the cutter to move upward, so that the cutter contacts the inner wall of the cutter mounting part.
[0035] In this example, motor 14 can be a servo motor.
[0036] In this example, the two fixed frames 2 are installed symmetrically at both ends of the mounting plate 1.
[0037] In this example, a cylinder 27 is fixedly installed on the top of the inner wall of the mounting box inside the milling machine. A rotating base 28 is fixedly installed on the output end of the cylinder 27. A servo motor inside the rotating base 28 drives one end of it to rotate. The mounting plate 1 is installed at the middle position of the rotating end of the rotating base 28. A disc-shaped tool magazine, as in the prior art, is provided on one side of the mounting box for feeding tools.
[0038] In this example, the lifting and lowering of the mounting plate 1 is controlled by setting cylinder 27, and the rotation of the mounting plate 1 is controlled by setting rotating base 28 to feed the tool.
[0039] Example 2
[0040] In some embodiments, such as Figure 5 As shown, a number of limiting posts 24 are fixedly installed on one side of the mounting bracket 23. A movable plate 25 is slidably installed on the outer wall of the limiting post 24. A spring is fixedly installed on the outer wall of the limiting post 24. The other end of the spring is fixedly installed on the inner wall of the hole on the movable plate 25 that is connected to the limiting post 24. A fixing pad 26 is fixedly installed on one side of the movable plate 25. The support member 22 is located on the corresponding side of the movable plate 25.
[0041] It should be noted that when the electric push rod 20 is started, it drives the connecting rod 21 to move, which in turn drives the support member 22 to move. The support member 22 supports the movement of the moving plate 25 and the fixing pad 26. The fixing pad 26 clamps the tool between them. The tool can be picked up and put down by setting the fixing pad 26.
[0042] In this example, when the support member 22 removes its support from the movable plate 25, the spring's rebound force pulls the movable plate 25 back to its original position.
[0043] In this example, a slide rail can be provided on the inner wall of the fixed frame 2, and the mounting bracket 23 is slidably installed on the slide rail on the inner wall of the fixed frame 2.
[0044] In this utility model, the motor 14, the electric push rod 20, and the cylinder 27 are known components and will not be described in detail here.
[0045] Working principle: When changing tools, the fixing frames 2 at both ends of the mounting plate 1 simultaneously remove the tools installed on the milling machine and in the tool magazine, and clamp them in place by the fixing pads 26. The rotating base 28 drives the mounting plate 1 to rotate, causing the fixing frames 2 to change position. The cylinder 27 drives the mounting plate 1 to rise, install the new tool in the tool mounting position on the milling machine, and send the replaced tool back to the tool magazine.
[0046] 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. A milling machine intelligent tool changer, characterized by: It includes a mounting plate (1), and fixed frames (2) are fixedly installed at both ends of the mounting plate (1), and a protective mechanism is provided on the fixed frames (2); The protective mechanism includes several mounting slots (3), two rollers (4), a moving belt (5), a protrusion (6), a mounting frame (7), a first mounting shaft (8), a first bevel gear (9), two second mounting shafts (10) and a second bevel gear (11). Several mounting slots (3) are formed on the top of the fixed frame (2). The two rollers (4) are rotatably mounted on the walls of the corresponding mounting slots (3). The moving belt (5) is mounted between the corresponding two rollers (4). The protrusion (6) is fixedly mounted on the outer wall of the moving belt (5). The first mounting shaft (8) is fixedly mounted on the corresponding... On one side of the roller (4), the mounting frame (7) is fixedly installed on one side of the outer wall of the fixed frame (2). The first bevel gear (9) is fixedly installed on one end of the first mounting shaft (8). The first bevel gear (9) is located inside the mounting frame (7). Two second mounting shafts (10) are rotatably installed on the bottom of the inner wall of the mounting frame (7). The second mounting shafts (10) are located on both sides inside the mounting frame (7). The second bevel gear (11) is fixedly installed on both ends of the second mounting shaft (10). The second bevel gear (11) meshes with the corresponding first bevel gear (9).
2. The intelligent tool changer for a milling machine of claim 1, wherein: A motor (14) is fixedly installed on the top of the mounting frame (7). The output end of the motor (14) extends into the interior of the mounting frame (7). A rotating shaft is fixedly installed on the output end of the motor (14). A first turntable (16) is fixedly installed on the outer wall of the rotating shaft. A third bevel gear (15) is fixedly installed on one end of the rotating shaft.
3. The intelligent tool changer for a milling machine of claim 2, wherein: The third bevel gear (15) meshes with the corresponding second bevel gear (11).
4. The intelligent tool changer for a milling machine of claim 2, wherein: The fixed frame (2) has a rotating groove and a moving hole on one side of its outer wall. A lead screw (18) is rotatably installed at both ends of the inner wall of the moving hole. The top end of the lead screw (18) extends into the rotating groove. A second turntable (17) is fixedly installed at the top end of the lead screw (18). The second turntable (17) and the first turntable (16) are connected by a belt.
5. The intelligent tool changer for a milling machine of claim 4, wherein: A movable frame (19) is slidably installed on the inner wall of the movable hole. The movable frame (19) is threadedly connected to the outer wall of the lead screw (18) through a threaded hole. An electric push rod (20) is fixedly installed on the inner wall of the movable frame (19). A connecting rod (21) is fixedly installed at the output end of the electric push rod (20). Support members (22) are fixedly installed at both ends of the connecting rod (21). Connecting frames (201) are fixedly installed on both sides of the movable frame (19). An installation frame (23) is fixedly installed at one end of the connecting frame (201).
6. The intelligent tool changer for a milling machine of claim 5, wherein: A plurality of limiting posts (24) are fixedly installed on one side of the mounting bracket (23). A movable plate (25) is slidably installed on the outer wall of the limiting post (24). A spring is fixedly installed on the outer wall of the limiting post (24). The other end of the spring is fixedly installed on the inner wall of the hole on the movable plate (25) that is connected to the limiting post (24). A fixing pad (26) is fixedly installed on one side of the movable plate (25).
7. The intelligent tool changing device for a milling machine according to claim 6, characterized in that: The support member (22) is located on the side corresponding to the movable plate (25).