Quick-change tool for numerically controlled machine tools

Abstract

The utility model discloses a quick change tool of numerical control machine tool, including mounting seat and tool, the bottom of mounting seat is provided with connecting groove, the top of tool is integrally provided with the handle of tool of connecting groove insertion, the outer periphery of handle is provided with insertion slot, the inside rotation of mounting seat is connected with the rotating block of being located above connecting groove, the inside of mounting seat is provided with the limiting slot of being located rotating block left and right sides, the mounting seat is provided with the deflection groove of being located rotating block front and back two sides, rotating block's front and back two sides one is provided with with deflection groove inside slide connection knob, rotating block's left and right sides one is provided with with limiting slot inside slide connection's limiting board. Connection pull rod draws moving block and insertion rod reverse movement, make insertion rod and insertion slot insertion again, can to quick tool installation and disassembly, avoid the time -consuming and labor -intensive screwing open multiple bolts when tool replacement, has improved the efficiency.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool technology, specifically to a quick-change tool for a CNC machine tool. Background Technology

[0002] Machine tools play an indispensable role in industry, and production in all sectors cannot function without them. Whether it's a lathe, milling machine, drilling machine, or machining center, all require cutting tools. Machining centers, in particular, use a wide variety of cutting tools, and most of them are automatic tool changers. Therefore, the stability of the connection between the cutting tool and the tool holder becomes a crucial factor in the performance of the machine tool.

[0003] In mechanical manufacturing, most parts with high surface precision requirements need to be machined again on a machine tool. However, the existing machine tool clamping devices are usually fixed by manually tightening multiple bolts, which is very inconvenient when changing tools. It is time-consuming and laborious to unscrew the bolts before the tool can be replaced. This tool changing method is not only time-consuming but also inefficient.

[0004] Therefore, we propose a quick-change tool for CNC machine tools. Utility Model Content

[0005] The purpose of this invention is to provide a quick-change tool for CNC machine tools to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a quick-change tool for a CNC machine tool, comprising a mounting base and a tool. The mounting base has a connecting groove at its bottom. The tool has a tool holder integrally formed on its top, which is inserted into the connecting groove. The outer circumferential surface of the tool holder has an insertion groove. A rotating block located above the connecting groove is rotatably connected inside the mounting base. Limiting grooves are located on the left and right sides of the rotating block inside the mounting base. Deflection grooves are located on the front and rear sides of the rotating block. A toggle switch is slidably connected to the deflection groove on one of the front and rear sides of the rotating block. A limiting plate is slidably connected to the limiting groove on one of the left and right sides of the rotating block. A return spring is provided inside the limiting groove. A rotating shaft is integrally connected to the bottom of the rotating block. A connecting rod located inside the mounting base is rotatably connected to the outer circumferential surface of the rotating shaft. A moving block is rotatably connected to the other end of the connecting rod. An insertion rod matching the insertion groove is fixedly installed at the bottom of the moving block. The insertion rod is slidably connected through the side wall of the connecting groove.

[0007] Optionally, one end of the reset spring is fixedly installed to the side of the limiting plate, the other end of the reset spring is fixedly installed to the end of the limiting groove, and the end of the toggle button is flush with the outer peripheral surface of the mounting base.

[0008] Optionally, the mounting base has two partitions located above the connecting groove inside, the rotating shaft is rotatably connected to the upper partition, and the connecting rod is located between the two partitions.

[0009] Optionally, the middle part of the movable block is horizontally slidably connected to the partition located on the lower layer, and the mounting base has a sliding groove located at the bottom of the upper partition, and the top of the movable block is slidably connected to the inside of the sliding groove.

[0010] Optionally, the mounting base is provided with a guide groove located on the side wall of the connecting groove, and the plug rod is slidably connected to the inside of the guide groove.

[0011] Optionally, the inner wall of the connecting groove is integrally connected with a positioning protrusion located between adjacent plug rods, and the outer peripheral surface of the tool handle is provided with a positioning groove that matches the positioning protrusion.

[0012] Optionally, the rotating shaft, rotating block, and mounting base are arranged coaxially, and the mounting base, insertion slot, and cutting tool are arranged coaxially.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This CNC machine tool features a quick-change tool system. By using a connecting rod, when changing tools, rotating the knob causes a rotating block to rotate the rotating shaft, which in turn deflects the connecting rod. This pushes the moving block along the sliding groove away from the center, disengaging the connecting rod from the tool holder's slot. This facilitates tool removal, allowing the new tool holder to be inserted into the connecting groove. Simultaneously, a positioning protrusion and positioning slide groove provide limiting. Releasing the knob causes the rotating block to reverse under the action of a return spring. This, in turn, pulls the moving block and the connecting rod in the opposite direction, re-engaging the connecting rod with the slot. This system allows for rapid tool installation and removal, avoiding the time-consuming and laborious process of unscrewing multiple bolts during tool replacement, thus improving efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a quick-change tool for a CNC machine tool according to the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of a quick-change tool mounting base for a CNC machine tool according to the present invention;

[0017] Figure 3 This is a schematic diagram of the connecting groove for quick-change tools in a CNC machine tool according to the present invention.

[0018] Figure 4 This is a schematic diagram of the structure of a rotating block for quick-change tools in a CNC machine tool according to the present invention;

[0019] Figure 5 This is a schematic diagram of the structure of a quick-change tool for a CNC machine tool according to the present invention.

[0020] In the diagram: 1. Mounting base; 2. Tool; 3. Rotating block; 4. Deflection groove; 5. Toggle switch; 6. Limiting plate; 7. Limiting groove; 8. Return spring; 9. Connecting groove; 10. Rotating shaft; 11. Connecting rod; 12. Moving block; 13. Insertion rod; 14. Guide groove; 15. Positioning protrusion; 16. Sliding groove; 17. Insertion groove; 18. Positioning groove; 19. Tool holder. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1 to 5This utility model provides a quick-change tool for a CNC machine tool, including a mounting base 1 and a tool 2. The bottom of the mounting base 1 has a connecting groove 9. The top of the tool 2 is integrally provided with a tool holder 19 that inserts into the connecting groove 9. The outer circumferential surface of the tool holder 19 has an insertion groove 17. A rotating block 3 located above the connecting groove 9 is rotatably connected inside the mounting base 1. Limiting grooves 7 are located on the left and right sides of the rotating block 3 inside the mounting base 1. Deflection grooves 4 are located on the front and rear sides of the rotating block 3. A toggle button 5 is slidably connected to the deflection groove 4 on one of the front and rear sides of the rotating block 3. A limiting plate 6 is slidably connected to the limiting groove 7 on one of the left and right sides of the rotating block 3. A return spring 8 is provided inside the limiting groove 7. A rotating shaft 10 is integrally connected to the bottom of the rotating block 3. A connecting rod 11 located inside the mounting base 1 is rotatably connected to the outer circumferential surface of the rotating shaft 10. A moving block 12 is rotatably connected to the other end of the connecting rod 11. A connector rod 13, which is matched with the connector slot 17, is fixedly installed at the bottom of the tool 2. The connector rod 13 is slidably connected to the side wall of the connecting slot 9. By setting the connector rod 13, when changing the tool 2, the knob 5 is turned, which causes the rotating block 3 to drive the rotating shaft 10 to rotate, thereby causing the connecting rod 11 to deflect and push the moving block 12 to move away from the center along the sliding groove 16. This causes the connector rod 13 to disengage from the connector slot 17 at the tool holder 19, making it easy to remove the tool 2. Then, the tool holder 19 of the new tool 2 is inserted into the connecting slot 9. At the same time, the positioning protrusion 15 and the positioning slide groove 18 limit the movement. When the knob 5 is released, the rotating block 3 is reversed under the action of the return spring 8. Then, the connecting rod 11 pulls the moving block 12 and the connector rod 13 to move in the opposite direction, so that the connector rod 13 is re-connected to the connector slot 17. This allows for quick installation and removal of the tool 2, avoiding the time-consuming and laborious unscrewing of multiple bolts when changing the tool 2, thus improving efficiency.

[0023] One end of the reset spring 8 is fixedly installed to the side of the limiting plate 6, and the other end of the reset spring 8 is fixedly installed to the end inside the limiting groove 7. The end of the dial 5 is flush with the outer circumferential surface of the mounting base 1.

[0024] The mounting base 1 has two partitions located above the connecting groove 9. The rotating shaft 10 is rotatably connected to the upper partition, and the connecting rod 11 is located between the two partitions.

[0025] The middle part of the movable block 12 is horizontally slidably connected to the partition located on the lower layer. The mounting base 1 has a sliding groove 16 located at the bottom of the upper partition, and the top of the movable block 12 is slidably connected to the inside of the sliding groove 16.

[0026] The mounting base 1 has a guide groove 14 located on the side wall of the connecting groove 9, and the plug rod 13 is slidably connected to the inside of the guide groove 14.

[0027] The inner wall of the connecting groove 9 is integrally connected with a positioning protrusion 15 located between adjacent plug rods 13, and the outer peripheral surface of the tool holder 19 is provided with a positioning groove 18 that is adapted to the positioning protrusion 15.

[0028] The rotating shaft 10, the rotating block 3, and the mounting base 1 are arranged on the same axis. The mounting base 1, the insertion slot 17, and the tool 2 are arranged on the same axis.

[0029] Working principle:

[0030] When changing tool 2, turn the knob 5 to make the rotating block 3 drive the rotating shaft 10 to rotate, which in turn causes the connecting rod 11 to deflect and push the moving block 12 to move away from the center along the sliding groove 16. This causes the insertion rod 13 to disengage from the insertion groove 17 at the tool holder 19, making it easy to remove tool 2. Then, insert the tool holder 19 of the new tool 2 into the connecting groove 9. At the same time, the positioning protrusion 15 and the positioning sliding groove 18 limit the movement. Release the knob 5, and under the action of the return spring 8, the rotating block 3 reverses. Then, the connecting rod 11 pulls the moving block 12 and the insertion rod 13 to move in the opposite direction, so that the insertion rod 13 is inserted into the insertion groove 17 again. This allows for quick installation and removal of tool 2.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-change tool for a CNC machine tool, comprising a mounting base (1) and a tool (2), characterized in that, The mounting base (1) has a connecting groove (9) at its bottom. The top of the cutting tool (2) is integrally provided with a tool handle (19) that is inserted into the connecting groove (9). The outer circumferential surface of the tool handle (19) has an insertion groove (17). The mounting base (1) is rotatably connected to a rotating block (3) located above the connecting groove (9). The mounting base (1) has limiting grooves (7) located on the left and right sides of the rotating block (3). The mounting base (1) has deflection grooves (4) located on the front and rear sides of the rotating block (3). The front and rear sides of the rotating block (3) are provided with a sliding dial (5) that is connected to the inside of the deflection groove (4). On the left and right sides of the rotating block (3), there are limiting plates (6) that are slidably connected to the inside of the limiting groove (7). The inside of the limiting groove (7) is a reset spring (8). The bottom of the rotating block (3) is integrally connected to a rotating shaft (10). The outer circumferential surface of the rotating shaft (10) is rotatably connected to a connecting rod (11) located inside the mounting base (1). The other end of the connecting rod (11) is rotatably connected to a moving block (12). The bottom of the moving block (12) is fixedly installed with a plug rod (13) that matches the plug groove (17). The plug rod (13) is slidably connected to the side wall of the connecting groove (9).

2. The quick-change tool for a CNC machine tool according to claim 1, characterized in that, One end of the reset spring (8) is fixedly installed on the side of the limiting plate (6), and the other end of the reset spring (8) is fixedly installed on the end inside the limiting groove (7). The end of the dial (5) is flush with the outer circumferential surface of the mounting base (1).

3. The quick-change tool for a CNC machine tool according to claim 1, characterized in that, The mounting base (1) has two partitions located above the connecting groove (9) inside. The rotating shaft (10) is rotatably connected to the partition located above. The connecting rod (11) is located between the two partitions.

4. A quick-change tool for a CNC machine tool according to claim 3, characterized in that, The middle part of the movable block (12) is horizontally slidably connected to the partition located on the lower layer. The mounting base (1) has a sliding groove (16) located at the bottom of the upper partition. The top of the movable block (12) is slidably connected to the inside of the sliding groove (16).

5. A quick-change tool for a CNC machine tool according to claim 1, characterized in that, The mounting base (1) is provided with a guide groove (14) located on the side wall of the connecting groove (9), and the plug rod (13) is slidably connected to the inside of the guide groove (14).

6. A quick-change tool for a CNC machine tool according to claim 1, characterized in that, The inner wall of the connecting groove (9) is integrally connected with a positioning protrusion (15) located between adjacent plug rods (13), and the outer peripheral surface of the knife handle (19) is provided with a positioning groove (18) that is adapted to the positioning protrusion (15).

7. A quick-change tool for a CNC machine tool according to claim 1, characterized in that, The rotating shaft (10), rotating block (3) and mounting base (1) are arranged on the same axis, and the mounting base (1), insertion slot (17) and cutting tool (2) are arranged on the same axis.

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