A tool bit changing mechanism

Abstract

The utility model relates to disc tool magazine technical field, concretely is a kind of tool bit tool changing mechanism that can protect, including mounting seat;The first servo motor is installed at the bottom of mounting seat, and the output of first servo motor is fixed with tool disc, and the bottom of tool disc is equipped with placing hole, and the tool is placed in placing hole;Second servo motor is installed at the bottom of mounting seat, and first electric telescopic handle is installed at the bottom of second servo motor, and the bottom of first electric telescopic handle is fixed with tool changing strip;Tool changing groove is equipped at the bottom of tool changing strip, and the tool is located inside tool changing groove, and the utility model has better fixing effect to tool, when tool disc rotates, tool cannot fall off from placing hole, protects the tool head of tool, avoids tool head damage, improves the service life and working efficiency of tool.

Description

Technical Field

[0001] This utility model relates to the field of disc tool magazine technology, specifically a tool changing mechanism that can protect the tool head. Background Technology

[0002] A tool magazine system is a device that provides the necessary tool storage and changing capabilities for automated machining processes. The tool magazine primarily provides the tool storage location and, according to program control, correctly selects and positions the tool for exchange. The tool changing mechanism performs the tool exchange action. The tool magazine and tool changing mechanism must coexist. In a traditional rotary tool magazine, after rotation selection, the tool is rotated 90 degrees by a rotating mechanism, and then the tool body is retrieved by the tool changing mechanism, which then performs the tool change operation.

[0003] The Chinese Patent Network discloses a disc tool magazine tool changing mechanism, publication number CN220312615U. Although the rotation of the disc tool magazine causes the internal machining tool to rotate as well, the operation of the cylinder causes the first clamping plate to slide towards the machining tool, allowing the first clamping plate to cooperate with the second clamping plate to clamp and limit the machining tool, the telescopic device causes the tool changing plate to slide downward, thereby disengaging the machining tool from the tool slot, and the rotating device causes the tool changing plate to rotate to perform the tool changing operation, this tool changing method does not require a rotating mechanism on the disc tool magazine, saving design costs and eliminating the need for a rotation operation step on the machining tool. However, the machining tool in this patent has poor stability. When the disc tool magazine rotates, the machining tool is prone to falling out of the tool slot, seriously affecting the safety of the machining tool head, and has obvious defects.

[0004] Therefore, a tool changing mechanism that can protect the tool head is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a tool changing mechanism that can protect the tool head.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A tool changer mechanism that protects the tool head includes:

[0008] Mounting base;

[0009] A first servo motor is installed at the bottom of the mounting base. A cutter head is fixed at the output end of the first servo motor. A placement hole is opened at the bottom of the cutter head, and a cutter is placed in the placement hole.

[0010] A second servo motor is installed at the bottom of the mounting base, a first electric telescopic rod is installed at the bottom of the second servo motor, and a tool changer is fixed at the bottom of the first electric telescopic rod.

[0011] The bottom of the tool changing bar is provided with a tool changing groove, and the tool is located inside the tool changing groove;

[0012] The inner wall of the tool changing slot is provided with an installation hole, and a second electric telescopic rod is installed on the inner wall of the installation hole. One end of the second electric telescopic rod is fixed with an arc-shaped plate that abuts against the tool.

[0013] A connecting ring is fixed to the outer wall of the cutter head, a through hole is opened on the outer wall of the connecting ring, a movable hole is opened on the inner wall of the through hole, and a limit groove is opened on the outer wall of the cutter.

[0014] A fixing rod is movably disposed inside the movable hole. One end of the fixing rod is fixed with a pull plate, and the other end of the fixing rod is engaged inside the limiting groove.

[0015] A first spring is provided on the outer wall of the fixing rod;

[0016] One end of the first spring is fixed to the pull plate, and the other end of the first spring is fixed to the inner wall of the through hole.

[0017] Preferably, an L-shaped strip is fixed to the outer wall of the cutter head, and a round hole is opened on the outer wall of the L-shaped strip. A third electric telescopic rod is installed on the outer wall of the cutter head, and a pull rope is installed at one end of the third electric telescopic rod, which passes through the round hole and is connected to the pull plate.

[0018] Preferably, a concave block is fixed to the outer wall of the L-shaped strip, and a movable column is movably installed inside the concave block, with the pull rope overlapping the outer wall of the movable column.

[0019] Preferably, the first servo motor, the second servo motor, the first electric telescopic rod, the second electric telescopic rod, and the third electric telescopic rod are electrically connected to an external PLC controller.

[0020] Preferably, the L-shaped strip has a through hole at the top, and a limiting rod that abuts against the pull plate is movably disposed in the through hole. A first abutting block is fixed to the outer wall of the third electric telescopic rod, and a second abutting block that abuts against the first abutting block is fixed to the top of the limiting rod. A receiving plate is fixed to the outer wall of the limiting rod, and a second spring is provided on the outer wall of the limiting rod. One end of the second spring is fixed to the receiving plate, and the other end of the second spring is fixed to the L-shaped strip.

[0021] Preferably, the pull rope is slack.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] This invention utilizes a first spring to drive a fixed rod to move within a through hole and a movable hole. Once one end of the fixed rod is engaged with the limiting groove, the tool is fixed inside the placement hole at the bottom of the cutter head. Compared to existing designs, this invention provides better tool fixation. When the cutter head rotates, the tool will not fall out of the placement hole, protecting the tool tip, preventing damage to the tool tip, and improving the tool's service life and working efficiency. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a partial cross-sectional structural diagram of the present invention;

[0026] Figure 3 This utility model Figure 2 A magnified structural diagram of A in the middle;

[0027] Figure 4 This is a schematic diagram of the second electric telescopic rod structure in this utility model.

[0028] In the diagram: 1. Mounting base; 2. First servo motor; 3. Tool head; 4. Placement hole; 5. Tool; 6. Second servo motor; 7. First electric telescopic rod; 8. Tool changing bar; 9. Tool changing groove; 10. Mounting hole; 11. Second electric telescopic rod; 12. Arc plate; 13. Connecting ring; 14. Through hole; 15. Movable hole; 16. Limiting groove; 17. Fixing rod; 18. Pull plate; 19. First spring; 20. L-shaped bar; 21. Round hole; 22. Third electric telescopic rod; 23. Pull rope; 24. Concave block; 25. Movable column; 26. First abutment block; 27. Through hole; 28. Limiting rod; 29. ​​Second abutment block; 30. Support plate; 31. Second spring. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0031] Example 1:

[0032] Please see Figure 1 , 24. This utility model provides a technical solution: To achieve the above objectives, this utility model provides the following technical solution: A tool changing mechanism that can protect the tool head, comprising: a mounting base 1; a first servo motor 2 is mounted on the bottom of the mounting base 1, a tool disc 3 is fixed to the output end of the first servo motor 2, a placement hole 4 is opened at the bottom of the tool disc 3, and a tool 5 is placed in the placement hole 4; a second servo motor 6 is mounted on the bottom of the mounting base 1, a first electric telescopic rod 7 is mounted on the bottom of the second servo motor 6, a tool changing bar 8 is fixed to the bottom of the first electric telescopic rod 7; a tool changing groove 9 is opened at the bottom of the tool changing bar 8, and the tool 5 is located inside the tool changing groove 9; a mounting hole 10 is opened on the inner wall of the tool changing groove 9, a second electric telescopic rod 11 is mounted on the inner wall of the mounting hole 10, and an arc-shaped plate 12 that abuts against the tool 5 is fixed at one end of the second electric telescopic rod 11; a connecting ring 13 is fixed on the outer wall of the tool disc 3, a through hole 14 is opened on the outer wall of the connecting ring 13, and a movable hole 15 is opened on the inner wall of the through hole 14. The outer wall of the cutter 5 has a limiting groove 16; a fixed rod 17 is movably installed in the movable hole 15, one end of the fixed rod 17 is fixed to a pull plate 18, and the other end of the fixed rod 17 is engaged in the limiting groove 16; a first spring 19 is provided on the outer wall of the fixed rod 17; one end of the first spring 19 is fixed to the pull plate 18, and the other end of the first spring 19 is fixed to the inner wall of the through hole 14; an L-shaped strip 20 is fixed on the outer wall of the cutter head 3, and a round hole 21 is opened on the outer wall of the L-shaped strip 20; a third electric telescopic rod 22 is installed on the outer wall of the cutter head 3, and a pull rope 23 is installed at one end of the third electric telescopic rod 22, passing through the round hole 21 and connected to the pull plate 18; a concave block 24 is fixed on the outer wall of the L-shaped strip 20, and a movable column 25 is movably installed inside the concave block 24; the pull rope 23 overlaps the outer wall of the movable column 25; the first servo motor 2, the second servo motor 6, the first electric telescopic rod 7, the second electric telescopic rod 11, and the third electric telescopic rod 22 are electrically connected to an external PLC controller.

[0033] Specifically, under the action of the first spring 19, the fixing rod 17 is driven to move within the through hole 14 and the movable hole 15. After one end of the fixing rod 17 is engaged with the limiting groove 16, the tool 5 can be fixed inside the placement hole 4 at the bottom of the cutter disc 3. Compared with the existing ones, the present invention has a better fixing effect on the tool 5. When the cutter disc 3 rotates, the tool 5 will not fall out of the placement hole 4, protecting the cutting head of the tool 5, avoiding damage to the cutting head of the tool 5, and improving the service life and working efficiency of the tool 5.

[0034] Example 2:

[0035] Please see Figure 1-3This utility model provides a technical solution: a tool changing mechanism that can protect the tool head. The top of the L-shaped bar 20 has a through hole 27. A limiting rod 28 that abuts against the pull plate 18 is movably arranged in the through hole 27. A first abutting block 26 is fixed to the outer wall of the third electric telescopic rod 22. A second abutting block 29 that abuts against the first abutting block 26 is fixed to the top of the limiting rod 28. A receiving plate 30 is fixed to the outer wall of the limiting rod 28. A second spring 31 is provided on the outer wall of the limiting rod 28. One end of the second spring 31 is fixed to the receiving plate 30, and the other end of the second spring 31 is fixed to the L-shaped bar 20. The pull rope 23 is in a slack state.

[0036] Specifically, under the action of the second spring 31, the limiting rod 28 will be driven to move within the through hole 27. After the limiting rod 28 abuts against the pull plate 18, the pull plate 18 can be used to limit the movement, thereby indirectly achieving the purpose of limiting the fixing rod 17 and preventing the fixing rod 17 from detaching from the limiting groove 16. This improves the fixing effect of the fixing rod 17 on the tool 5, further preventing the tool 5 from falling out of the placement hole 4, and improving the service life and working efficiency of the tool 5.

[0037] Working principle:

[0038] First, the operator installs the mounting base 1 into the designated area. Then, the cutter 5 is placed into the placement hole 4 at the bottom of the cutter head 3. Subsequently, under the action of the first spring 19, the fixing rod 17 moves within the through hole 14 and movable hole 15 on the outer wall of the connecting ring 13. After one end of the fixing rod 17 is engaged with the limiting groove 16, the cutter 5 is fixed inside the placement hole 4 at the bottom of the cutter head 3. Then, under the action of the second spring 31, the limiting rod 28 moves within the through hole 27. After the limiting rod 28 abuts against the pull plate 18, the pull plate 18 is used for limiting, indirectly achieving the purpose of limiting the fixing rod 17 and preventing the fixing rod 17 from being stopped. 7 disengages from the limiting groove 16, thereby improving the fixing effect of the fixing rod 17 on the tool 5. Subsequently, when tool changing is required, the operator can use an external PLC controller to start the first servo motor 2, the second servo motor 6, the first electric telescopic rod 7, the second electric telescopic rod 11, and the third electric telescopic rod 22. The first servo motor 2 drives the tool disc 3 and the tool 5 to rotate. Then, the first electric telescopic rod 7 drives the tool changing bar 8 to move upward. After the tool 5 is located inside the tool changing groove 9 of the tool changing bar 8, the second electric telescopic rod 11 in the mounting hole 10 drives the arc plate 12 to move. After the arc plate 12 abuts against the outer wall of the tool 5, The third electric telescopic rod 22 retracts. Since the pull rope 23 is slack, the third electric telescopic rod 22 uses the pull rope 23 (which passes through the round hole 21 on the outer wall of the L-shaped bar 20) to pull the pull plate 18. Simultaneously, the third electric telescopic rod 22 moves the first abutment block 26. Due to the special shape design of the first abutment block 26 and the second abutment block 29, when the first abutment block 26 moves, under the action of the second spring 31 and the receiving plate 30, it drives the limiting rod 28 to rise within the through hole 27 of the L-shaped bar 20. After the limiting rod 28 is no longer in contact with the pull plate 18, the third electric telescopic rod 22 then cooperates with the pull rope 23... Pulling the pull plate 18 causes the fixed rod 17 to move within the through hole 14 and the movable hole 15. The first spring 19 will then stretch. Once one end of the fixed rod 17 disengages from the outer wall of the limiting groove 16, the first electric telescopic rod 7 will drive the tool changing bar 8 and the tool 5 to descend. After the tool 5 disengages from the placement hole 4, the second servo motor 6 will then drive the tool 5 to rotate, thus completing the tool changing operation. It should be noted that when the pull rope 23 is working, it will slide on the outer wall of the movable column 25 within the concave block 24. The cooperation between the concave block 24 and the movable column 25 can reduce the wear of the pull rope 23 and extend its service life.

[0039] In the description of this utility model, it should be understood that the terms "center", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A tool changing mechanism that protects the tool head, characterized in that, include: Mounting base (1); The mounting base (1) is equipped with a first servo motor (2) at the bottom. The output end of the first servo motor (2) is fixed with a cutter head (3). The bottom of the cutter head (3) is provided with a placement hole (4). A cutter (5) is placed in the placement hole (4). The mounting base (1) is equipped with a second servo motor (6) at the bottom, and a first electric telescopic rod (7) is installed at the bottom of the second servo motor (6). A tool changer (8) is fixed at the bottom of the first electric telescopic rod (7). The tool changing bar (8) has a tool changing groove (9) at its bottom, and the tool (5) is located inside the tool changing groove (9); The inner wall of the tool changing groove (9) is provided with an installation hole (10), and a second electric telescopic rod (11) is installed on the inner wall of the installation hole (10). One end of the second electric telescopic rod (11) is fixed with an arc plate (12) that abuts against the tool (5). A connecting ring (13) is fixed on the outer wall of the cutter head (3). A through hole (14) is opened on the outer wall of the connecting ring (13). A movable hole (15) is opened on the inner wall of the through hole (14). A limit groove (16) is opened on the outer wall of the cutter (5). A fixing rod (17) is movably disposed in the movable hole (15). One end of the fixing rod (17) is fixed with a pull plate (18), and the other end of the fixing rod (17) is engaged in the limiting groove (16). The outer wall of the fixing rod (17) is provided with a first spring (19); One end of the first spring (19) is fixed to the pull plate (18), and the other end of the first spring (19) is fixed to the inner wall of the through hole (14).

2. The tool changing mechanism for protecting the tool head according to claim 1, characterized in that, An L-shaped strip (20) is fixed to the outer wall of the cutter head (3). A round hole (21) is opened on the outer wall of the L-shaped strip (20). A third electric telescopic rod (22) is installed on the outer wall of the cutter head (3). A pull rope (23) is installed at one end of the third electric telescopic rod (22) that passes through the round hole (21) and is connected to the pull plate (18).

3. The tool changing mechanism for protecting the tool head according to claim 2, characterized in that, A concave block (24) is fixed to the outer wall of the L-shaped strip (20), and a movable column (25) is movably installed inside the concave block (24). The pull rope (23) is attached to the outer wall of the movable column (25).

4. The tool changing mechanism for protecting the tool head according to claim 2, characterized in that, The first servo motor (2), the second servo motor (6), the first electric telescopic rod (7), the second electric telescopic rod (11), and the third electric telescopic rod (22) are electrically connected to an external PLC controller.

5. A tool changing mechanism for protecting the tool head according to claim 2, characterized in that, The L-shaped bar (20) has a perforation (27) at the top. A limiting rod (28) that abuts against the pull plate (18) is movably disposed in the perforation (27). A first abutting block (26) is fixed to the outer wall of the third electric telescopic rod (22). A second abutting block (29) that abuts against the first abutting block (26) is fixed to the top of the limiting rod (28). A receiving plate (30) is fixed to the outer wall of the limiting rod (28). A second spring (31) is disposed on the outer wall of the limiting rod (28). One end of the second spring (31) is fixed to the receiving plate (30), and the other end of the second spring (31) is fixed to the L-shaped bar (20).

6. The tool changing mechanism for protecting the tool head according to claim 2, characterized in that, The pull rope (23) is in a slack state.

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