Tool changing assembly for a vertical milling machine

Abstract

The utility model provides a kind of tool changing assembly of vertical milling machine, it is related to vertical milling machine technical field, including base, the top of base is fixedly installed with hydraulic cylinder, the output of hydraulic cylinder is fixedly installed with moving frame, the top of moving frame is fixedly installed with operation box.The utility model, by setting base, hydraulic cylinder, moving frame, operation box, motor, mounting bracket, worm, rotating block, worm wheel, insert slot, bidirectional screw rod, moving plate one structure, by rotating rotating block, worm, worm wheel, bidirectional screw rod etc. Component collaborative operation, can accurately, quickly control moving plate one and moving plate two, so that fixed column and fixed groove realize close cooperation or separate, whole process does not need artificial manual tightening fixture, greatly shorten tool changing time.

Description

Technical Field

[0001] This utility model relates to the field of vertical milling machine technology, and in particular to a tool changing assembly for a vertical milling machine. Background Technology

[0002] The origin of the tool changer assembly for vertical milling machines is closely linked to the development of the machining industry and the pursuit of machining efficiency and precision. Early vertical milling machines relied primarily on manual tool changing, requiring operators to use wrenches and other tools to manually disassemble and install the milling cutters. This method was not only time-consuming and labor-intensive, but also prone to errors due to human intervention, leading to insecure tool installation, vibration, and misalignment during machining. This severely impacted machining accuracy and production efficiency, and could even cause safety accidents.

[0003] However, for traditional equipment, the installation and removal of tools in traditional tool changer components is cumbersome, relying heavily on manual tightening or loosening of clamps. This not only consumes a lot of time, but also makes it difficult to accurately control the force of manual operation, which can easily lead to the milling cutter not being installed securely, causing it to shake during processing, affecting processing accuracy, and even causing safety accidents. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this utility model is to solve the technical problems mentioned in the background art.

[0005] This utility model adopts the following technical solution: a tool changing assembly for a vertical milling machine, including a base, a hydraulic cylinder fixedly mounted on the top of the base, a movable frame fixedly mounted on the output end of the hydraulic cylinder, an operating box fixedly mounted on the top of the movable frame, a motor fixedly mounted on the top of the movable frame, a mounting frame fixedly mounted on the output end of the motor, a worm gear sleeved inside the mounting frame, a rotating block fixedly mounted on one end of the worm gear, a worm wheel sleeved inside the mounting frame, an insertion slot opened at the bottom end of the mounting frame, a double-acting lead screw fixedly mounted at the bottom end of the worm wheel, and a movable plate threadedly connected to the outer surface of the double-acting lead screw. A fixing block is fixedly installed on the surface of the mounting frame. A rotating column is fitted inside the fixing block. A movable plate is fitted inside the mounting frame. A fixing column is fixedly installed on the surface of the movable plate. A fixing block is fixedly installed at the rear end of the movable plate. A fixing cylinder is inserted into the insertion slot. A fixing groove is opened on the surface of the fixing cylinder. A milling cutter is fixedly installed at the bottom end of the fixing cylinder. A fixing frame is fixedly installed at the top end of the base. A sliding groove is opened at the top end of the fixing frame. A sliding plate is fitted inside the sliding groove. A placement frame is fixedly installed at the top end of the sliding plate. A threaded rod is threadedly connected inside the sliding groove and the sliding plate. A handwheel is fixedly installed at one end of the threaded rod.

[0006] Preferably, the surface of the worm gear meshes with the surface of the worm, and the surface of the rotating block is provided with anti-slip textures. These anti-slip textures are in multiple sets and distributed circumferentially on the surface of the rotating block. The milling cutter is placed above the mounting bracket. Here, the meshing transmission of the worm gear and worm ensures the accuracy and stability of power transmission, enabling precise execution of the tool changing action.

[0007] Preferably, there are four sets of the first fixed block, the rotating column, the second fixed block, and the second movable plate, which are arranged circumferentially inside the mounting frame. The mounting frame has a sliding groove inside, and a slider is fixedly installed at the bottom of the first movable plate, which is fitted inside the sliding groove. Here, the four sets of circumferentially distributed first fixed block, rotating column, second fixed block, and second movable plate form a uniform and symmetrical clamping structure within the mounting frame, which can stably clamp and fix the fixed cylinder, ensuring that the milling cutter does not wobble during operation.

[0008] Preferably, the mounting bracket has a "T"-shaped cross-section, the number of fixing posts is three sets arranged in an array on the surface of the first movable plate, the first movable plate is arc-shaped, and the number of fixing slots is multiple sets arranged circumferentially inside the fixed cylinder. Here, the three sets of arrayed fixing posts cooperate with the first movable plate to provide multiple clamping points, corresponding to the multiple sets of circumferentially distributed fixing slots on the surface of the fixed cylinder, allowing the fixing posts to be inserted into the fixing slots, achieving all-round and secure clamping of the fixed cylinder, and ensuring the stability of the milling cutter during the machining process.

[0009] Preferably, the hydraulic cylinder is rotatably connected to the top surface of the base via bolts. The rotating column is flat and elliptical in shape. Both the first and second fixing blocks have rounded corners on their surfaces. The fixing column is inserted into the fixing groove. Here, the hydraulic cylinder is rotatably connected to the base via bolts, ensuring a firm connection and a certain degree of rotational flexibility, facilitating the adjustment of the tool changing assembly angle according to actual working requirements.

[0010] Preferably, the hydraulic cylinder is initially in a stretched state, and a fixing block three is fixedly installed on the surface of the base. The surface of the fixing block three has through-holes, and there are four sets of fixing blocks three symmetrically distributed on the surface of the base. Here, the hydraulic cylinder's initial stretched state allows the tool changing assembly to be in a higher position, avoiding interference with other components of the milling machine when not in operation, thus ensuring equipment safety.

[0011] Preferably, a support rod is fixedly installed at the bottom end of the movable frame, and a protective cover is fitted onto the bottom outer surface of the support rod, with a spring fitted inside the protective cover. Here, the support rod at the bottom end of the movable frame, together with the protective cover and the spring, forms a protective structure.

[0012] Preferably, the bottom of the milling cutter and mounting bracket is fitted inside the protective cover. Multiple sets of support rods and springs are arranged circumferentially at the bottom of the movable frame and inside the protective cover. One end of each spring is connected and fixed to the inner surface of the protective cover, and the other end of each spring is connected and fixed to the bottom surface of the support rod. Here, the multiple sets of circumferentially distributed support rods and springs form a uniform buffering and support structure at the bottom of the movable frame and inside the protective cover, ensuring effective buffering and protection for the mounting bracket and milling cutter in all directions, thus improving the stability of the buffering effect.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. This utility model, by setting up a base, hydraulic cylinder, moving frame, operating box, motor, mounting bracket, worm gear, rotating block, worm wheel, insertion slot, double-acting screw, and moving plate one structure, allows for precise and rapid control of moving plate one and moving plate two by rotating the rotating block and coordinating the operation of the worm gear, worm wheel, and double-acting screw. This ensures that the fixed column and fixed slot are tightly engaged or disengaged, eliminating the need for manual tightening of the clamps and significantly reducing tool change time. Simultaneously, the precise design of the mechanical transmission structure ensures uniform force distribution on all components, resulting in a secure installation of the milling cutter and preventing shaking during processing, effectively guaranteeing processing accuracy and operational safety.

[0015] 2. In this utility model, by setting a support rod, a protective cover, and a spring structure, and by setting a protective cover on the outside of the support rod at the bottom of the moving frame, the flying debris generated during the vertical milling machine can be effectively blocked, avoiding injury to the operator when the equipment is in use, and reducing the workload of the operator in cleaning up debris. Attached Figure Description

[0016] Figure 1 A three-dimensional structural diagram of a tool changing assembly for a vertical milling machine is provided for this utility model.

[0017] Figure 2 An exploded view of the tool changing assembly of a vertical milling machine is provided for this utility model.

[0018] Figure 3 A bottom view of the tool changing assembly of a vertical milling machine is provided for this utility model.

[0019] Figure 4 This utility model provides a partial structural schematic diagram of a tool changing assembly for a vertical milling machine.

[0020] Figure 5 This utility model provides a schematic diagram of the mounting bracket structure for a tool changer assembly of a vertical milling machine;

[0021] Figure 6This utility model provides a schematic diagram of the milling cutter structure of the tool changing assembly of a vertical milling machine;

[0022] Figure 7 This utility model proposes a tool changing assembly for a vertical milling machine. Figure 4 Enlarged view of point A in the middle;

[0023] Figure 8 This utility model presents a schematic diagram of the protective cover structure for the tool changing assembly of a vertical milling machine.

[0024] Legend:

[0025] 1. Base; 2. Hydraulic cylinder; 3. Moving frame; 4. Control box; 5. Motor; 6. Mounting frame; 7. Worm gear; 8. Rotating block; 9. Worm wheel; 10. Insertion slot; 11. Double-acting lead screw; 12. Moving plate one; 13. Fixed block one; 14. Rotating column; 15. Moving plate two; 16. Fixed column; 17. Fixed block two; 18. Fixed cylinder; 19. Fixed slot; 20. Milling cutter; 21. Fixed frame; 22. Slide groove; 23. Slide plate; 24. Placement frame; 25. Threaded rod; 26. Handwheel; 27. Support rod; 28. Protective cover; 29. ​​Spring. Detailed Implementation

[0026] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0028] Example 1

[0029] Please see Figures 1-7This utility model provides a technical solution: a tool changing assembly for a vertical milling machine, including a base 1, a hydraulic cylinder 2 fixedly mounted on the top of the base 1, a movable frame 3 fixedly mounted on the output end of the hydraulic cylinder 2, an operation box 4 fixedly mounted on the top of the movable frame 3, a motor 5 fixedly mounted on the top of the movable frame 3, a mounting frame 6 fixedly mounted on the output end of the motor 5, a worm gear 7 sleeved inside the mounting frame 6, a rotating block 8 fixedly mounted on one end of the worm gear 7, a worm wheel 9 sleeved inside the mounting frame 6, an insertion slot 10 opened at the bottom of the mounting frame 6, a double-acting screw 11 fixedly mounted at the bottom of the worm wheel 9, a movable plate 12 threadedly connected to the outer surface of the double-acting screw 11, a fixing block 13 fixedly mounted on the surface of the movable plate 12, and a fixing block 13 sleeved inside the fixing block 13. There is a rotating column 14. A movable plate 15 is fitted inside the mounting bracket 6. A fixed column 16 is fixedly installed on the surface of the movable plate 15. A fixed block 17 is fixedly installed at the rear end of the movable plate 15. A fixed cylinder 18 is inserted inside the insertion slot 10. A fixed groove 19 is opened on the surface of the fixed cylinder 18. A milling cutter 20 is fixedly installed at the bottom end of the fixed cylinder 1. A fixed frame 21 is fixedly installed at the top end of the base 1. A sliding groove 22 is opened at the top end of the fixed frame 21. A sliding plate 23 is fitted inside the sliding groove 22. A placement bracket 24 is fixedly installed at the top end of the sliding plate 23. A threaded rod 25 is threadedly connected inside the sliding groove 22 and the sliding plate 23. A handwheel 26 is fixedly installed at one end of the threaded rod 25. When it is necessary to replace the milling cutter 20, first, the hand contacts the surface of the rotating block 8. Then, rotate the rotating block 8, which drives the worm gear 7 to rotate. The worm gear 7 then drives the worm wheel 9 to rotate, which in turn drives the double-acting screw 11 to rotate, moving the first moving plate 12. The moving plate 12 then moves the first fixed block 13, which in turn moves the first fixed block 14. The rotating column 14 then moves the second fixed block 17, which in turn moves the second moving plate 15, which in turn moves the second fixed column 16. Finally, the fixed column 16 is moved to align with the fixed groove. After separating phase 19, the fixed cylinder 18 and the milling cutter 20 are then separated from the mounting bracket 6 for replacement. During equipment use, the hydraulic cylinder 2 is activated via the control box 4, which in turn moves the movable frame 3. This movement then moves the motor 5, mounting bracket 6, and milling cutter 20. Once in the appropriate position, the motor 5 is activated, causing the mounting bracket 6 and milling cutter 20 to rotate, allowing for machining operations. Simultaneously, the handwheel 26 rotates the threaded rod 25, which rotates within the slide groove 22 and slide plate 23, driving the slide plate 23 to slide within the slide groove 22. Adjusting the position of the placement bracket 24 allows for adjustment of the workpiece's position.

[0030] Please see Figures 1-8 The surface of the worm gear 9 meshes with the surface of the worm 7. The surface of the rotating block 8 has anti-slip textures, which are in multiple sets and distributed circumferentially on the surface of the rotating block 8. The milling cutter 20 is placed above the mounting frame 24. There are four sets of fixed blocks 13, rotating columns 14, fixed blocks 27, and moving plates 25, which are distributed circumferentially inside the mounting frame 6. The mounting frame 6 has sliding grooves inside. A slider is fixedly installed at the bottom of the moving plate 12, and the slider is fitted inside the sliding groove. The cross-sectional shape of the mounting frame 6 is "T". There are three sets of fixed columns 16, which are arranged in an array on the surface of the moving plate 12. The moving plate 12 is arc-shaped. There are multiple sets of fixed grooves 19, which are distributed circumferentially inside the fixed cylinder 18. The hydraulic cylinder 2 is rotatably connected to the top surface of the base 1 by bolts. The rotating column 14 is a flat ellipse. The fixed blocks 13 and the fixed... The surface of the fixed block 17 is rounded, the fixed post 16 is inserted into the fixed groove 19, the hydraulic cylinder 2 is initially in a stretched state, the surface of the base 1 is fixedly mounted with a fixed block 3, the surface of the fixed block 3 is provided with a through screw hole, there are four sets of fixed blocks 3 and they are symmetrically distributed on the surface of the base 1, the bottom of the milling cutter 20 and the mounting bracket 6 are fitted inside the protective cover 28, there are multiple sets of support rods 27 and springs 29 and they are circumferentially distributed at the bottom of the moving frame 3 and inside the protective cover 28, one end of the spring 29 is connected and fixed to the inner surface of the protective cover 28, and the other end of the spring 29 is connected and fixed to the bottom surface of the support rod 27. The two ends of the spring 29 are respectively connected to the inside of the protective cover 28 and the bottom of the support rod 27 to ensure that a buffer force can be provided in time during the tool changing process, and the bottom of the milling cutter 20 and the mounting bracket 6 are fitted inside the protective cover 28 to achieve all-round dust prevention and protection.

[0031] Example 2

[0032] Please see Figure 8 A support rod 27 is fixedly installed at the bottom of the movable frame 3. A protective cover 28 is fitted on the bottom outer surface of the support rod 27. A spring 29 is fitted inside the protective cover 28. When the equipment is in use, the movable frame 3 is moved by the movement of the hydraulic cylinder 2. Then, the movement of the movable frame 3 moves the support rod 27. Then, the movement of the support rod 27 moves the protective cover 28. Then, the protective cover 28 moves and comes into contact with the surface of the workpiece. Then, the hydraulic cylinder 2 continues to move and moves the spring 29 to retract. Then, the milling cutter 20 comes into contact with the surface of the workpiece and can perform processing. The protective cover 28 protects against the threat to the personal safety of the operator caused by the debris generated during processing.

[0033] Working principle: When the milling cutter 20 needs to be replaced, first, the hand contacts the surface of the rotating block 8, then rotates the rotating block 8. The rotation of the rotating block 8 drives the worm gear 7 to rotate, which in turn drives the worm wheel 9 to rotate. The worm wheel 9 then drives the double-acting screw 11 to rotate, which in turn moves the moving plate 12. The movement of the moving plate 12 then moves the fixed block 13. The movement of the fixed block 13 then drives the rotating column 14 to rotate, which in turn moves the fixed block 17. The movement of the fixed block 17 then moves the moving plate 15, which in turn moves the fixed column 16. The movement of the fixed column 16 disengages it from the fixed groove 19, and then the fixed cylinder 18 and the milling cutter 20 are detached from the mounting bracket 6 for replacement. Simultaneously, when the equipment is in use, the hydraulic cylinder 2 is activated via the operating box 4, which in turn drives the moving plate 12 to rotate. The frame 3 moves, which in turn moves the motor 5, mounting bracket 6, and milling cutter 20. After moving to the appropriate position, the motor 5 is started, which in turn drives the mounting bracket 6 and milling cutter 20 to rotate, allowing for machining operations. Simultaneously, the handwheel 26 is turned, causing the threaded rod 25 to rotate. The threaded rod 25 rotates within the slide groove 22 and the slide plate 23, thereby driving the slide plate 23 to slide within the slide groove 22. Adjusting the position of the placement frame 24 allows for adjustment of the workpiece's position. During equipment use, the hydraulic cylinder 2 moves the frame 3, which in turn moves the support rod 27, which in turn moves the protective cover 28, bringing it into contact with the workpiece surface. The hydraulic cylinder 2 then continues to move, causing the spring 29 to retract, allowing the milling cutter 20 to contact the workpiece surface for machining. The protective cover 28 provides protection, preventing debris generated during machining from threatening the operator's safety.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A tool changing assembly for a vertical milling machine, comprising a base (1), characterized in that: A hydraulic cylinder (2) is fixedly installed at the top of the base (1). A movable frame (3) is fixedly installed at the output end of the hydraulic cylinder (2). An operation box (4) is fixedly installed at the top of the movable frame (3). A motor (5) is fixedly installed at the top of the movable frame (3). A mounting frame (6) is fixedly installed at the output end of the motor (5). A worm gear (7) is sleeved inside the mounting frame (6). A rotating block (8) is fixedly installed at one end of the worm gear (7). A worm wheel (9) is sleeved inside the mounting frame (6). An insertion slot (10) is opened at the bottom end of the mounting frame (6). A double-acting screw (11) is fixedly installed at the bottom end of the worm wheel (9). A movable plate (12) is threadedly connected to the outer surface of the double-acting screw (11). A fixing block (13) is fixedly installed on the surface of the movable plate (12). A rotating column is sleeved inside the fixing block (13). (14) The mounting bracket (6) is fitted with a movable plate two (15) inside. A fixed column (16) is fixedly installed on the surface of the movable plate two (15). A fixed block two (17) is fixedly installed at the rear end of the movable plate two (15). A fixed cylinder (18) is inserted into the insertion slot (10). A fixed groove (19) is opened on the surface of the fixed cylinder (18). A milling cutter (20) is fixedly installed at the bottom end of the fixed cylinder (18). A fixed frame (21) is fixedly installed at the top end of the base (1). A sliding groove (22) is opened at the top end of the fixed frame (21). A sliding plate (23) is fitted inside the sliding groove (22). A placement frame (24) is fixedly installed at the top end of the sliding plate (23). A threaded rod (25) is threadedly connected inside the sliding groove (22) and the sliding plate (23). A handwheel (26) is fixedly installed at one end of the threaded rod (25).

2. The tool changing assembly for a vertical milling machine according to claim 1, characterized in that: The surface of the worm wheel (9) meshes with the surface of the worm (7), and the surface of the rotating block (8) is provided with anti-slip texture. The anti-slip texture consists of multiple sets and is distributed circumferentially on the surface of the rotating block (8). The milling cutter (20) is placed above the placement frame (24).

3. The tool changing assembly for a vertical milling machine according to claim 1, characterized in that: The number of fixed block one (13), rotating column (14), fixed block two (17), and moving plate two (15) are all four sets and are distributed in a circle inside the mounting frame (6). The mounting frame (6) has a sliding groove inside. The bottom end of the moving plate one (12) is fixedly installed with a slider, which is sleeved inside the sliding groove.

4. The tool changing assembly for a vertical milling machine according to claim 1, characterized in that: The mounting bracket (6) has a "T" shaped cross section. The number of the fixing columns (16) is three sets and they are arranged in an array on the surface of the moving plate (12). The shape of the moving plate (12) is arc-shaped. The number of the fixing grooves (19) is multiple sets and they are arranged in a circle inside the fixing cylinder (18).

5. The tool changing assembly for a vertical milling machine according to claim 1, characterized in that: The hydraulic cylinder (2) is rotatably connected to the top surface of the base (1) by bolts. The rotating column (14) is flat and elliptical in shape. The surfaces of the first fixing block (13) and the second fixing block (17) are rounded. The fixing column (16) is inserted into the inside of the fixing groove (19).

6. The tool changing assembly for a vertical milling machine according to claim 1, characterized in that: The initial state of the hydraulic cylinder (2) is in a stretched state. The surface of the base (1) is fixedly installed with a fixing block three. The surface of the fixing block three is provided with a screw hole. There are four sets of fixing blocks three, which are symmetrically distributed on the surface of the base (1).

7. The tool changing assembly for a vertical milling machine according to claim 1, characterized in that: A support rod (27) is fixedly installed at the bottom end of the mobile frame (3). A protective cover (28) is fitted on the bottom outer surface of the support rod (27), and a spring (29) is fitted inside the protective cover (28).

8. The tool changing assembly for a vertical milling machine according to claim 7, characterized in that: The bottom of the milling cutter (20) and the mounting bracket (6) are fitted inside the protective cover (28). The number of the support rod (27) and the spring (29) are multiple sets and are distributed in a circle at the bottom of the moving frame (3) and inside the protective cover (28). One end of the spring (29) is connected and fixed to the inner surface of the protective cover (28), and the other end of the spring (29) is connected and fixed to the bottom surface of the support rod (27).

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