Numerical control machine tool machining tool replacing device

Abstract

The utility model discloses a numerical control machine tool machining cutter replacing device which comprises a machine tool spindle, a shaft seat and a cutter body, the shaft seat is fixedly installed at the bottom of the machine tool spindle, an installation ring groove is formed in the upper portion of the cutter body, an installation inserting groove is formed in the bottom of the shaft seat, and the upper portion of the cutter body is inserted into the installation inserting groove. Two inner grooves are symmetrically formed in the mounting slot, rotating shafts are rotatably connected to the interiors of the two inner grooves, fan-shaped clamping plates are fixedly mounted on the surfaces of the two rotating shafts, the two fan-shaped clamping plates are clamped to the interiors of the mounting ring grooves, and one ends of the two rotating shafts extend out of one side of the shaft seat and are fixedly connected with gears; the two gears are in meshed connection; the numerical control machine tool machining cutter replacing device is provided with a convenient cutter dismounting and mounting structure, the cutter dismounting and mounting structure can conveniently replace, dismount and mount the cutter, meanwhile, the stability and firmness of cutter mounting and using can be guaranteed, and therefore the working efficiency of a numerical control machine tool is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of numerical control machine tools, in particular to a tool replacement device for numerical control machine tools. Background Art

[0002] CNC machine tool is the abbreviation of computer numerical control machine tool, which is an automated machine tool controlled by a program; the control system can logically process programs specified by control codes or other symbolic instructions, decode them through a computer, and enable the machine tool to perform the specified actions, and process the blank into semi-finished parts through tool cutting; However, when the CNC machine tool is changing the tool, it is impossible to quickly remove the tool and conveniently replace and install the tool, which affects the efficiency of the CNC machine tool. Therefore, in response to the above problems, it is necessary to design a CNC machine tool tool changing device. Utility Model Content

[0003] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a CNC machine tool processing tool changing device, comprising a machine tool spindle, a shaft seat and a tool body, the shaft seat is fixedly installed at the bottom of the machine tool spindle, the upper part of the tool body is provided with a mounting ring groove, the bottom of the shaft seat is provided with a mounting slot, the upper part of the tool body is inserted into the interior of the mounting slot, the interior of the mounting slot is symmetrically provided with two inner grooves, the interiors of the two inner grooves are both rotatably connected with a rotating shaft, the surfaces of the two rotating shafts are fixedly installed with fan-shaped clamping plates, the two fan-shaped clamping plates are both clamped in the interior of the mounting ring groove so that the tool body is firmly installed in the interior of the mounting slot, one end of the two rotating shafts extends to the outside of one side of the shaft seat and is fixedly connected with a gear, and the two gears are meshed and connected to each other to effectively adjust the two rotating shafts to rotate synchronously relative to or opposite to each other.

[0004] Preferably, the other end of one of the rotating shafts extends to the outside of the other side of the shaft seat and is fixedly connected to a worm wheel, and the other side of the shaft seat is rotatably connected to a worm, the worm is meshed with the worm wheel, and one end of the worm is fixedly installed with a first rotating nut, so that effective adjustment can be performed to firmly install the tool body inside the mounting slot.

[0005] Preferably, a round block is fixedly mounted on the other end of the worm, an arc block cocentric with the round block is fixedly mounted on one end of the shaft seat, and an arc-shaped inclined block is fixedly mounted on the inner arc surface of the arc block.

[0006] Preferably, the circumferential surface of the round block is provided with an inverted T-shaped circular groove and a square slot, the inverted T-shaped circular groove and the square slot are located on the same straight line and are connected, an inverted T-shaped block is rotatably installed inside the inverted T-shaped circular groove, one end of the inverted T-shaped block is fixedly connected to a second rotating nut, the other end of the inverted T-shaped block is fixedly connected to a threaded pin located inside the square slot, an outer square internal threaded tube is movably inserted inside the square slot, the threaded pin is threadedly connected to the outer square internal threaded tube, and one end of the outer square internal threaded tube is fixedly connected to a hemispherical block that contacts the inner arc surface of the arc-shaped inclined block, thereby effectively limiting the worm gear and preventing the worm gear from automatically rotating in the reverse direction and becoming loose, thereby effectively ensuring the stability and firmness of the worm gear transmission.

[0007] Compared with the prior art, the beneficial effects of the present invention are as follows: by arranging a machine tool spindle, a shaft seat, a tool body, a mounting ring groove, a mounting slot, an inner groove, a rotating shaft, a fan-shaped clamping plate and a gear, the CNC machine tool processing tool changing device has a convenient tool disassembly and assembly structure, which can facilitate the replacement and disassembly operation of the tool, and can also ensure the stability and firmness of the tool installation and use, thereby ensuring the efficiency of the CNC machine tool. In addition, the tool changing device has a simple structural design, is convenient and easy to use and operate, and the tool installation and use are stable and reliable. Its performance can meet the use requirements of CNC machine tools. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0009] In the attached figure:

[0010] Figure 1 This is a front view structural diagram of the tool changing device for CNC machine tools of the utility model;

[0011] Figure 2 This is a rear view structural diagram of the tool changing device for CNC machine tools of the present invention;

[0012] Figure 3 For this utility model Figure 1 A schematic diagram of a partial cross-sectional structure;

[0013] Figure 4 For this utility model Figure 1 A schematic diagram of a partial side view structure of ;

[0014] In the figure: 1. Machine tool spindle; 2. Shaft seat; 3. Tool body; 4. Mounting ring groove; 5. Mounting slot; 6. Inner groove; 7. Rotating shaft; 8. Fan-shaped clamping plate; 9. Gear; 10. Worm gear; 11. Worm; 12. First rotating nut; 13. Round block; 14. Arc block; 15. Arc-shaped tilting block; 16. Inverted T-shaped circular groove; 17. Square slot; 18. Inverted T-shaped block; 19. Second rotating nut; 20. Threaded pin; 21. External square internal threaded tube; 22. Hemispherical block. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be clearly and completely described 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; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0016] Depend on Figures 1 to 4 The utility model includes a machine tool spindle 1, a shaft seat 2 and a tool body 3. The shaft seat 2 is fixedly mounted on the bottom of the machine tool spindle 1. A mounting ring groove 4 is provided on the upper part of the tool body 3. A mounting slot 5 is provided on the bottom of the shaft seat 2. The upper part of the tool body 3 is inserted into the inside of the mounting slot 5. Two inner grooves 6 are symmetrically provided inside the mounting slot 5. The inside of the two inner grooves 6 are both rotatably connected with a rotating shaft 7. The surfaces of the two rotating shafts 7 are fixedly mounted with fan-shaped clamping plates 8. The two fan-shaped clamping plates 8 are both clamped in the inside of the mounting ring groove 4 so that the tool body 3 is firmly mounted in the inside of the mounting slot 5. One end of the two rotating shafts 7 extends to the outside of one side of the shaft seat 2 and is fixedly connected with a gear 9. The two gears 9 are meshed and connected to each other, and can effectively adjust the two rotating shafts 7 to rotate synchronously relative to or opposite to each other.

[0017] The other end of one of the rotating shafts 7 extends to the outside of the other side of the shaft seat 2 and is fixedly connected to a worm gear 10. The other side of the shaft seat 2 is rotatably connected to a worm 11, which is meshed with the worm gear 10. One end of the worm 11 is fixedly mounted with a first rotating nut 12, so that the tool body 3 can be effectively adjusted to be firmly mounted inside the mounting slot 5.

[0018] Insert the upper part of the tool body 3 into the inside of the mounting slot 5, and then use a tool to rotate the first rotating nut 12 to rotate the worm 11. The rotation of the worm 11 will drive the worm wheel 10 to rotate. The rotation of the worm wheel 10 will cause the two rotating shafts 7 to rotate relative to each other through the two meshing gears 9. The two rotating shafts 7 that rotate relative to each other will drive the two fan-shaped clamping plates 8 to rotate and be stuck into the inside of the mounting ring groove 4. At the same time, the two fan-shaped clamping plates 8 make the top of the tool body 3 collide with the top of the mounting slot 5 through the mounting ring groove 4, so that the tool body 3 is firmly installed in the inside of the mounting slot 5.

[0019] The tool replacement device for CNC machine tools has a convenient tool disassembly and assembly structure, which can facilitate the replacement and disassembly operations of the tool, and can also ensure the stability and firmness of the tool installation and use, thereby ensuring the efficiency of the CNC machine tool.

[0020] In addition, the tool changing device has a simple structural design, is convenient and easy to use and operate, and the tool installation and use are stable and reliable, and its performance can meet the use requirements of CNC machine tools.

[0021] The other end of the worm 11 is fixedly mounted with a round block 13, and one end of the shaft seat 2 is fixedly mounted with an arc block 14 concentric with the round block 13. The inner arc surface of the arc block 14 is fixedly mounted with an arc-shaped inclined block 15. The inclined surface of the arc-shaped inclined block 15 gradually decreases with the transmission tightening direction of the worm 11. The circumferential surface of the round block 13 is provided with an inverted T-shaped circular groove 16 and a square slot 17. The inverted T-shaped circular groove 16 and the square slot 17 are located on the same straight line and are connected. An inverted T-shaped block 18 is rotatably mounted inside the inverted T-shaped circular groove 16, and one end of the inverted T-shaped block 18 is fixedly connected There is a second rotating nut 19, and the other end of the inverted T-shaped block 18 is fixedly connected to a threaded pin 20 located inside the square slot 17. An outer square internal threaded tube 21 is movably inserted into the interior of the square slot 17. The threaded pin 20 is threadedly connected to the outer square internal threaded tube 21. One end of the outer square internal threaded tube 21 is fixedly connected to a hemispherical block 22 that contacts the inner arc surface of the arc-shaped tilting block 15, thereby effectively limiting the worm 11 and preventing the worm 11 from automatically rotating in the reverse direction and becoming loose, effectively ensuring the stability and firmness of the transmission of the worm 11;

[0022] When the worm 11 is adjusted, the second rotating nut 19 is rotated by a tool to rotate the inverted T-shaped block 18 and drive the threaded pin 20 to rotate. The rotation of the threaded pin 20 will cause the outer square internal threaded tube 21 to move on its surface and inside the square slot 17. The movement of the square internal threaded tube 21 will drive the hemispherical block 22 to move toward the inner arc surface of the arc-shaped inclined block 15, so that the hemispherical block 22 conflicts with the inner arc surface of the arc-shaped inclined block 15, thereby limiting the worm 11 and ensuring the stability of the adjustment.

Claims

1. A CNC machine tool tool changing device, comprising a machine tool spindle (1), a shaft seat (2) and a tool body (3), characterized in that: The shaft seat (2) is fixedly mounted on the bottom of the machine tool spindle (1), the upper part of the tool body (3) is provided with a mounting ring groove (4), the bottom of the shaft seat (2) is provided with a mounting slot (5), the upper part of the tool body (3) is plugged into the interior of the mounting slot (5), the interior of the mounting slot (5) is symmetrically provided with two inner grooves (6), the interiors of the two inner grooves (6) are both rotatably connected with a rotating shaft (7), the surfaces of the two rotating shafts (7) are fixedly mounted with fan-shaped clamping plates (8), the two fan-shaped clamping plates (8) are both clamped in the interior of the mounting ring groove (4) so that the tool body (3) is firmly mounted in the interior of the mounting slot (5), one end of the two rotating shafts (7) extends to the outside of one side of the shaft seat (2) and is fixedly connected with a gear (9), the two gears (9) are meshed and connected to each other and can effectively adjust the two rotating shafts (7) to rotate relative to or opposite to each other synchronously.

2. The tool changing device for a CNC machine tool according to claim 1, characterized in that: The other end of one of the rotating shafts (7) extends to the outside of the other side of the shaft seat (2) and is fixedly connected to a worm wheel (10). The other side of the shaft seat (2) is rotatably connected to a worm (11). The worm (11) is meshed with the worm wheel (10). One end of the worm (11) is fixedly mounted with a first rotating nut (12).

3. The tool changing device for a CNC machine tool according to claim 2, characterized in that: A round block (13) is fixedly mounted on the other end of the worm (11), an arc block (14) coaxial with the round block (13) is fixedly mounted on one end of the shaft seat (2), and an arc-shaped inclined block (15) is fixedly mounted on the inner arc surface of the arc block (14).

4. The tool changing device for a CNC machine tool according to claim 3, characterized in that: The circumferential surface of the circular block (13) is provided with an inverted T-shaped circular groove (16) and a square slot (17). The inverted T-shaped circular groove (16) and the square slot (17) are located on the same straight line and are connected. An inverted T-shaped block (18) is rotatably installed inside the inverted T-shaped circular groove (16). One end of the inverted T-shaped block (18) is fixedly connected to a second rotating nut (19). The other end of the inverted T-shaped block (18) is fixedly connected to a threaded pin (20) located inside the square slot (17). An outer square inner threaded tube (21) is movably inserted inside the square slot (17). The threaded pin (20) is threadedly connected to the outer square inner threaded tube (21). One end of the outer square inner threaded tube (21) is fixedly connected to a hemispherical block (22) that contacts the inner arc surface of the arc-shaped tilting block (15).

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