Rapid tool changing device for metal milling machine tool

Abstract

The utility model relates to the field of machine tools, in particular to a quick tool changing device for a metal milling machine tool, which comprises a control box, a platform is rotatably connected onto the control box, moving grooves in a circumferential array are arranged on the platform, a moving block is slidably connected into each moving groove, a sliding groove is arranged on each moving block, and two clamping blocks are slidably connected into each sliding groove. An adjusting assembly used for enabling the clamping block to move to clamp the tool is arranged on the moving block, and a lifting assembly used for lifting and moving the moving block to complete tool replacement is arranged in the control box. The electric push rod is adopted to drive the circular truncated cone to ascend and descend so as to complete ascending and descending of the movable block, and the first motor drives the two-way lead screw to achieve clamping and releasing of a tool through the clamping block. The barrier and the potential collision risk which are possibly caused by the fact that a tool fixing structure is not replaced when a traditional oil cylinder integrally lifts the base plate are avoided, and therefore the safety and the efficiency in the tool replacing process are improved.

Description

Technical Field

[0001] This utility model relates to the field of machine tool technology, specifically to a quick tool changer for a metal milling machine tool. Background Technology

[0002] Milling refers to cutting a workpiece using a rotating multi-edged cutting tool. It is a highly efficient machining method. During operation, the cutting tool rotates (performs the main motion), and the workpiece moves (performs the feed motion). The workpiece can also be fixed, but the rotating cutting tool must still move (simultaneously completing the main motion and feed motion). Milling machine tools include horizontal milling machines, vertical milling machines, and large gantry milling machines.

[0003] Chinese patent CN218904489U discloses a quick tool changer for machine tools. When a tool change is needed, the new tool is first held by a clamping mechanism. Then, a lifting trolley is moved to insert a positioning block into a positioning slot. Next, cylinder two is operated to move the moving plate and the tool feeding mechanism into the machine tool. When the unloaded clamping mechanism moves directly below the spindle, cylinder two is stopped. Then, a hydraulic cylinder is operated to raise the tool feeding mechanism, and the tool holder facing the spindle supports the old tool. Finally, the operation... The machine tool operates by releasing the old tool from the spindle and using cylinder one to clamp the tool body with the chuck. Then, the hydraulic cylinder lowers the tool feeding mechanism, and the motor rotates the base plate and clamping mechanism until the new tool is directly below the spindle. Then, the hydraulic cylinder raises the tool feeding mechanism, and the new tool extends into the spindle. The machine tool is then operated to fix the new tool in place by the spindle. The hydraulic cylinder lowers the tool feeding mechanism again, and cylinder two moves the tool feeding mechanism out of the machine tool. Finally, the lifting trolley is moved to the parking position.

[0004] In the above scheme, the hydraulic cylinder is used to move the entire tool feeding mechanism up and down to complete the tool receiving and mating action. However, since there are multiple structures on the base plate that fix the tool, when the entire base plate is raised and lowered, not only can the fixing structure that has not changed the tool easily obstruct the movement of the machine tool spindle, but it is also easy to cause damage to the tool due to collision.

[0005] Therefore, this utility model provides a quick tool change device for metal milling machine tools to solve the above problems. Utility Model Content

[0006] In view of the above situation and to overcome the defects of the prior art, this utility model provides a quick tool change device for metal milling machine tools, so as to solve the problem that when the entire substrate is lifted and lowered, not only does the fixed structure without tool change easily obstruct the movement of the machine tool spindle, but it is also easy to cause tool damage due to collision.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A quick tool changer for a metal milling machine includes a control box, a platform rotatably connected to the control box, and a circular array of movable slots on the platform. A movable block is slidably connected to each movable slot, and a sliding groove is provided on each movable block. Two clamping blocks are slidably connected to each sliding groove. An adjustment component is provided on each movable block to move the clamping blocks to clamp the tool. A lifting component is provided in the control box for raising and lowering the movable blocks to change the tool. A second motor is also installed in the control box, and the output shaft of the second motor is fixedly connected to the platform.

[0009] Preferably, the adjustment assembly includes a first motor mounted on the movable block, the output shaft of the first motor is equipped with a bidirectional lead screw, and the bidirectional lead screw is rotatably connected in a slide groove, and the bottom ends of the two clamping blocks are respectively threaded to the two ends of the bidirectional lead screw.

[0010] Preferably, anti-slip pads are fixedly connected to the sides of the two clamping blocks that are close to each other, and the anti-slip pads are located above the moving blocks.

[0011] Preferably, the lifting assembly includes two L-shaped blocks mounted on the movable block, and an electric push rod is installed inside the control box. The telescopic end of the electric push rod is fixedly connected to a frustum, and the frustum is located between the two L-shaped blocks.

[0012] Preferably, a limit ring is fixedly connected to the bottom end of the movable block, and an iron plate is also fixedly connected to the movable block.

[0013] Preferably, the upper surface of the platform is inlaid with magnets arranged in a circular array, and the magnets are compatible with the iron plate.

[0014] Preferably, a stop block is fixedly connected inside the slide groove, and a storage groove is provided on the stop block.

[0015] Preferably, the control box has an inspection port and the bottom surface of the control box has mounting holes.

[0016] The beneficial effects of this utility model are as follows:

[0017] The lifting and lowering of the moving block is accomplished by using an electric push rod to drive the truncated cone to move, and the clamping block clamps and releases the tool by driving a bidirectional lead screw driven by a first motor. This avoids the obstacles and potential collision risks that may be caused by the un-tool-changing fixed structure when the base plate is lifted by a traditional hydraulic cylinder, thereby improving the safety and efficiency of the tool changing process. Furthermore, by inserting the tool end into the storage slot for positioning and using anti-slip pads to increase clamping stability, the safety and reliability of the tool changing process are further ensured. Attached Figure Description

[0018] Figure 1The three-dimensional representation of this utility model Figure 1 .

[0019] Figure 2 The three-dimensional representation of this utility model Figure 2 .

[0020] Figure 3 This is a cross-sectional view of the present invention.

[0021] In the diagram: 1. Control box; 2. Platform; 3. Moving groove; 4. Moving block; 5. Electric push rod; 6. Frustum; 7. L-shaped block; 8. Limit ring; 9. Magnet; 10. Iron plate; 11. Slide groove; 12. First motor; 13. Two-way lead screw; 14. Clamping block; 15. Anti-slip pad; 16. Abutment block; 17. Storage groove; 18. Inspection port; 19. Mounting hole; 20. Second motor. Detailed Implementation

[0022] The following will refer to the attached reference. Figures 1 to 3 The various embodiments of this utility model will be described in detail below. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of this utility model and are not intended to limit the scope of protection of this utility model.

[0023] A quick tool changer for a metal milling machine tool, such as Figures 1 to 3 As shown, the system includes a control box 1, a platform 2 rotatably connected to the control box 1, and a circular array of moving slots 3 on the platform 2. Each moving slot 3 is slidably connected to a moving block 4, which can slide up and down within the moving slot 3. The moving block 4 is provided with a sliding groove 11, and two clamping blocks 14 are slidably connected within the sliding groove 11. The top of the clamping block 14 is located outside the sliding groove 11.

[0024] The movable block 4 is provided with an adjustment component for moving the clamping block 14 to complete the clamping of the tool. The adjustment component includes a first motor 12 mounted on the movable block 4. The output shaft of the first motor 12 is equipped with a bidirectional lead screw 13, and the bidirectional lead screw 13 is rotatably connected in the slide groove 11. The bottom ends of the two clamping blocks 14 are respectively threaded to the two ends of the bidirectional lead screw 13.

[0025] The bidirectional lead screw 13 is a rod with opposite threads at both ends. The output shaft of the first motor 12 drives the bidirectional lead screw 13 to rotate, which enables the two clamping blocks 14 to move closer or further apart in the slide groove 11, thereby completing the clamping and fixing of the tool.

[0026] Anti-slip pads 15 are fixedly connected to the sides of the two clamping blocks 14 that are close to each other, and the anti-slip pads 15 are located above the moving block 4. The side of the anti-slip pads 15 away from the clamping blocks 14 is curved or flat, which can be appropriately adjusted according to the shape of the tool. The clamping blocks 14 press the anti-slip pads 15 against the tool to improve the stability of the tool clamping.

[0027] A stop block 16 is fixedly connected inside the slide groove 11. A receiving groove 17 is provided on the stop block 16, which can insert the end of the tool into the receiving groove 17 to complete the positioning of the tool.

[0028] The control box 1 is equipped with a lifting assembly for moving the movable block 4 to change the tool. The lifting assembly includes two L-shaped blocks 7 installed on the movable block 4. An electric push rod 5 is installed in the control box 1. The telescopic end of the electric push rod 5 is fixedly connected to a frustum 6, and the frustum 6 is located between the two L-shaped blocks 7. By moving the frustum 6 between the two L-shaped blocks 7, the telescopic end of the electric push rod 5 drives the frustum 6 to move up and down to complete the lifting of the movable block 4.

[0029] The bottom end of the movable block 4 is fixedly connected to a limiting ring 8, and an iron plate 10 is also fixedly connected to the movable block 4. The upper surface of the platform 2 is inlaid with magnets 9 arranged in a circular array, and the magnets 9 are compatible with the iron plate 10. The limiting ring 8 is used to limit the highest rising position of the movable block 4, and after the movable block 4 descends, it can stick the iron plate 10 against the magnets 9, and use the magnets 9's own magnetism to attract and fix the iron plate 10.

[0030] The control box 1 is also equipped with a second motor 20, and the output shaft of the second motor 20 is fixedly connected to the platform 2. The platform 2 is rotated by the output shaft of the second motor 20, which can switch the moving block 4 on the machine tool spindle. When the platform 2 is rotating, the circular table 6 will move out from between the two L-shaped blocks 7 of the current moving block 4.

[0031] The control box 1 has an inspection port 18 and a mounting hole 19 on its bottom surface. The inspection port 18 facilitates the maintenance of the electric push rod 5 and the second motor 20, while the mounting hole 19 facilitates the fixing of the control box 1.

[0032] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A quick tool changer for a metal milling machine tool, comprising a control box (1), characterized in that, A platform (2) is rotatably connected to the control box (1). The platform (2) has a circular array of moving slots (3). Each moving slot (3) is slidably connected to a moving block (4). The moving block (4) has a sliding groove (11). Two clamping blocks (14) are slidably connected in the sliding groove (11). The moving block (4) is provided with an adjustment component for moving the clamping block (14) to complete the clamping of the tool. The control box (1) is provided with a lifting component for raising and lowering the moving block (4) to complete the tool replacement. The control box (1) is also equipped with a second motor (20), and the output shaft of the second motor (20) is fixedly connected to the platform (2).

2. The quick tool changer for a metal milling machine tool according to claim 1, characterized in that, The adjustment assembly includes a first motor (12) mounted on the moving block (4), the output shaft of the first motor (12) is equipped with a bidirectional lead screw (13), and the bidirectional lead screw (13) is rotatably connected in the slide groove (11). The bottom ends of the two clamping blocks (14) are respectively threaded to the two ends of the bidirectional lead screw (13).

3. A quick tool changer for a metal milling machine tool according to claim 1, characterized in that, Anti-slip pads (15) are fixedly connected to one side of each of the two clamping blocks (14) that are close to each other, and the anti-slip pads (15) are located above the moving block (4).

4. A quick tool changer for a metal milling machine tool according to claim 1, characterized in that, The lifting assembly includes two L-shaped blocks (7) mounted on the movable block (4). An electric push rod (5) is installed in the control box (1). A frustum (6) is fixedly connected to the telescopic end of the electric push rod (5), and the frustum (6) is located between the two L-shaped blocks (7).

5. A quick tool changer for a metal milling machine tool according to claim 1, characterized in that, The bottom end of the movable block (4) is fixedly connected to a limit ring (8), and an iron plate (10) is also fixedly connected to the movable block (4).

6. A quick tool changer for a metal milling machine tool according to claim 5, characterized in that, The upper surface of the platform (2) is inlaid with magnets (9) arranged in a circular array, and the magnets (9) are adapted to the iron plate (10).

7. A quick tool changer for a metal milling machine tool according to claim 1, characterized in that, An abutment block (16) is fixedly connected inside the slide (11), and a storage slot (17) is provided on the abutment block (16).

8. A quick tool changer for a metal milling machine tool according to claim 1, characterized in that, The control box (1) has an inspection port (18) and an installation hole (19) on its bottom surface.

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