Fixture capable of automatically changing tool for numerical control machining

Abstract

The utility model relates to the technical field of clamps, and discloses a numerical control machining clamp capable of automatically changing tools, which comprises an operation table, the top of a support frame I is fixedly connected with a dismounting assembly for providing quick separation, and the top of the operation table is fixedly connected with two linear guide rails; the top of the second supporting frame is fixedly connected with a power assembly providing pushing telescopic force, the top of the connecting frame is fixedly connected with a driving assembly providing rotating power, the driving assembly is fixedly connected with a rotating plate, the outer portion of the rotating plate is rotationally connected with a fan-shaped wheel, and the bottom of the second connecting column is fixedly connected with a rotating plate. According to the automatic tool bit replacing device, the rotating plate rotates, the rotating plate and the fan-shaped wheel are connected through a structure, so that the rotating plate rotates to drive the fan-shaped wheel to rotate, the whole structure is downward after the rotating plate rotates, the tool bit is taken out of the connecting block, and the effect that the tool bit is automatically replaced is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a clamp capable of automatically changing tools for numerical control machining. Background Art

[0002] A CNC machining fixture with automatic tool change is a fixture that works in conjunction with the automatic tool change system of a CNC machine tool during the CNC machining process. It not only has the basic functions of positioning and clamping the workpiece, but also adapts to automatic tool change operations, ensuring that the tool can accurately process the workpiece during the machining process.

[0003] Most fixtures in the existing technology do not have an integrated automatic tool changing function, which limits the flexibility and adaptability of the processing system. Especially in the scenario of diversified small-batch production, frequent tool replacement will cause equipment idleness and waste of resources. There are deficiencies in compatibility and adaptability, and it cannot meet the flexibility requirements of different processing needs. A fixture with automatic tool changing function for CNC machining is now proposed. Utility Model Content

[0004] In order to make up for the above shortcomings, the present invention provides a fixture for CNC machining with automatic tool change, aiming to improve the problem that some fixtures in the prior art cannot automatically change tools.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] The fixture of CNC machining with automatic tool change comprises an operating table, the top of the operating table is fixedly connected to a support frame 1, the top of the support frame 1 is fixedly connected to a disassembly component providing quick separation, the top of the operating table is fixedly connected to two linear guide rails, the top of the linear guide rails is fixedly connected to a support frame 2, the top of the support frame 2 is fixedly connected to a power component providing pushing and retracting force, the power component is fixedly connected to a plurality of connecting columns 1, the outside of the connecting column 1 is fixedly connected to the connecting frame, the top of the connecting frame is fixedly connected to a drive component providing rotational power, the drive component is fixedly connected to a rotating plate, the outside of the rotating plate is rotatably connected to a sector wheel, the inside of the connecting frame is rotatably connected to a connecting column 2, the top of the connecting column 2 is fixedly connected to a gear 1, and the bottom of the connecting column 2 is fixedly connected to the rotating plate;

[0007] As a further description of the above technical solution:

[0008] The disassembly assembly includes a connecting block, a plurality of springs are fixedly connected to the interior of the connecting block, a limiting ball is fixedly connected to the exterior of the spring, a cutter head is slidably connected to the exterior of the limiting ball, and the top of the connecting block is fixedly connected to the top of the support frame 1;

[0009] As a further description of the above technical solution:

[0010] The power assembly includes a cylinder 1, a driving end of the cylinder 1 is fixedly connected to a telescopic column 1, the outside of the telescopic column 1 is fixedly connected to a connecting plate, and the bottom of the cylinder 1 is fixedly connected to the top of the support frame 2;

[0011] As a further description of the above technical solution:

[0012] The driving assembly includes a motor 1, a driving end of the motor 1 is fixedly connected to a rotating column 1, an outer portion of the rotating column 1 is fixedly connected to a limiting column, and a bottom of the motor 1 is fixedly connected to the top of the connecting frame;

[0013] As a further description of the above technical solution:

[0014] The top of the operating table is fixedly connected to a bottom plate, the top of the bottom plate is fixedly connected to two fixing bars, the top of the fixing bars is slidably connected to a sliding frame, the top of the bottom plate is fixedly connected to a second cylinder, the driving end of the second cylinder is fixedly connected to a second telescopic column, and the outside of the sliding frame is fixedly connected to the outside of the sliding frame;

[0015] As a further description of the above technical solution:

[0016] The outside of the sliding frame is fixedly connected to a rack, the top of the bottom plate is rotatably connected to a second gear, and the top of the sliding frame is fixedly connected to a vertical plate;

[0017] As a further description of the above technical solution:

[0018] The outside of the vertical plate is fixedly connected to a support plate, the top of the support plate is fixedly connected to a second motor, the driving end of the second motor is fixedly connected to a second rotating column, and the outside of the second rotating column is fixedly connected to a first clamping block;

[0019] As a further description of the above technical solution:

[0020] The outside of the other vertical plate is fixedly connected to a fixed column, the inside of the fixed column is rotatably connected to a rotating column, and the outside of the rotating column is fixedly connected to a second clamping block;

[0021] As a further description of the above technical solution:

[0022] The top of the operating table is fixedly connected to a storage box, and the bottom of the operating table is fixedly connected to a plurality of supporting legs.

[0023] The utility model has the following beneficial effects:

[0024] 1. In the utility model, the rotation of the rotating column drives the connected limit column to rotate. Since the limit column is in the hole inside the rotating plate, the rotating plate rotates accordingly. Since the rotating plate and the fan-shaped wheel are connected by a structure, the rotation of the rotating plate drives the fan-shaped wheel to rotate, so that the gear meshing with it rotates, thereby rotating the rotating plate. Then, the above-mentioned overall structure is moved downward by the cylinder, so that the cutter head is taken out from the connecting block, and a new cutter head is replaced by the rotating plate, thereby achieving the effect of automatic replacement of the cutter head by the device.

[0025] 2. In the present invention, one of the sliding frames is pushed forward by the cylinder. Since the sliding frame is connected to a rack and the rack is meshed with gear 2, the thrust of the cylinder is transmitted to the other sliding frame, thereby fixing the object to be processed. After the front processing is completed, the object is flipped by starting motor 2 to rotate clamping block 1 and clamping block 2, thereby achieving the effect of automatic flipping of the object. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a three-dimensional schematic diagram of the fixture for CNC machining with automatic tool change proposed by the present invention;

[0027] Figure 2 This is a structural diagram of a support frame 1 of a fixture for CNC machining with automatic tool change proposed by the present invention;

[0028] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0029] Figure 4 This is a schematic structural diagram of the rotating plate of the fixture for CNC machining with automatic tool change proposed by the present invention;

[0030] Figure 5 for Figure 4 Enlarged view of point B in the middle;

[0031] Figure 6 This is a schematic diagram of the structure of the rack of the CNC machining fixture with automatic tool change proposed by the present invention;

[0032] Figure 7 This is a structural schematic diagram of the sliding frame of the CNC machining fixture with automatic tool change proposed by the utility model.

[0033] Legend:

[0034] 1. Operating table; 2. Support frame 1; 3. Connecting block; 4. Spring; 5. Limiting ball; 6. Cutter head; 7. Linear guide; 8. Support frame 2; 9. Cylinder 1; 10. Telescopic column 1; 11. Connecting plate; 12. Connecting column 1; 13. Connecting frame; 14. Motor 1; 15. Rotating column 1; 16. Limiting column; 17. Rotating plate; 18. Fan wheel; 19. Gear 1; 20. Connecting column 2; 21. Rotating plate; 22. Bottom plate; 23. Fixed bar; 24. Cylinder 2; 25. Telescopic column 2; 26. Sliding frame; 27. Rack; 28. Gear 2; 29. Vertical plate; 30. Support plate; 31. Motor 2; 32. Rotating column 2; 33. Clamping block 1; 34. Fixed column; 35. Rotating column; 36. Clamping block 2; 37. Storage box; 38. Support leg DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] Reference Figures 1 to 3 , the utility model provides an embodiment: a fixture for automatic tool change in CNC machining, comprising an operating table 1, the top of the operating table 1 is fixedly connected to a support frame 2, the structure of the support frame 2 is made of high-strength material to ensure its stability and durability in long-term use, the top of the support frame 2 is fixedly connected to a disassembly component that provides quick separation, the component is designed to facilitate the operator to quickly change the tool, the disassembly component comprises a connecting block 3, the interior of the connecting block 3 is fixedly connected to a plurality of springs 4, the spring 4 is made of high-quality spring steel, with good elasticity and fatigue resistance, the outside of the spring 4 is fixedly connected to a limiting ball 5, the outside of the limiting ball 5 is slidingly connected to a cutter head 6, the design of the cutter head 6 takes into account cutting efficiency and wear resistance, ensuring that excellent performance can be maintained during the machining process, the top of the connecting block 3 is fixedly connected to the top of the support frame 2, forming a solid connection structure, ensuring the stability of the tool during machining;

[0037] Reference Figure 4 、 Figure 5The top of the operating table 1 is fixedly connected to two linear guide rails 7, which are made of high-precision materials to ensure smooth sliding and accurate positioning. The top of the linear guide rail 7 is fixedly connected to a support frame 2 8. The structure of the support frame 2 8 is designed to be light and stable for easy installation and maintenance. The top of the support frame 2 8 is fixedly connected to a power component that provides pushing and telescopic force. This power component plays a key role in power transmission in the entire device. The power component includes a cylinder 1 9. The cylinder body of the cylinder 1 9 is usually made of high-strength aluminum alloy, and the internal piston and other moving parts are made of wear-resistant alloy steel. The driving end of the cylinder 1 9 is fixedly connected to a telescopic column 10. Telescopic column 10 is a cylindrical metal rod with a smooth surface. It can perform linear telescopic motion under the drive of cylinder 9. The outside of telescopic column 10 is fixedly connected to a connecting plate 11. Connecting plate 11 can be a square metal plate used to connect other components or transmit force and motion. The bottom of cylinder 9 is fixedly connected to the top of support frame 28. The power assembly is fixedly connected to multiple connecting columns 12. The outside of connecting column 12 is fixedly connected to connecting frame 13. Connecting frame 13 can be a metal frame structure with a relatively complex shape. It can connect multiple components together to ensure the integrity and coordination of the entire device.

[0038] The top of the connecting frame 13 is fixedly connected with a driving assembly that provides rotational power. The driving assembly includes a motor 14. The outer shell of the motor 14 is generally made of metal, and the interior contains components such as a stator and a rotor. The driving end of the motor 14 is fixedly connected with a rotating column 15. The rotating column 15 is a cylindrical rotating shaft made of high-strength alloy steel. The surface is precisely machined and can rotate smoothly. The outside of the rotating column 15 is fixedly connected to a limiting column 16, which is mainly used to limit the motion range of certain components and transmit the rotational force to the rotating plate 17. The bottom of the motor 14 is fixedly connected to the top of the connecting frame 13, and the driving assembly is fixedly connected with a rotating plate 17. The rotating plate 17 is a metal plate. Driven to rotate, the external rotation of the rotating plate 17 is connected to the fan-shaped wheel 18, which is a fan-shaped metal wheel with a smooth edge and can rotate around the connection point with the rotating plate 17, playing a role in transmitting motion and force during the movement of the entire device. The internal rotation of the connecting frame 13 is connected to the connecting column 20, which is a cylindrical metal rod that can rotate inside the connecting frame 13. The top of the connecting column 20 is fixedly connected to the gear 19, which is a circular metal gear with a specific number of teeth and module. Its tooth shape is precise and can mesh with the fan-shaped wheel 18 for transmission. The bottom of the connecting column 20 is fixedly connected to the rotating plate 21. The rotating plate 21 is a square metal plate.

[0039] Reference Figure 6 、 Figure 7The top of the operating table 1 is fixedly connected with a base plate 22. The base plate 22 is made of a solid aluminum alloy material, which is both light and can ensure the stability of the structure. The top of the base plate 22 is fixedly connected with two fixing bars 23. The fixing bar 23 is made of high-strength alloy steel. Its shape is a long strip, and the cross-section of the long strip is rectangular, which can provide stable support and guidance for the components above. The top of the fixing bar 23 is slidably connected with a sliding frame 26, a frame structure made of metal material, and the bottom of the frame has a slide groove matching the fixing bar 23. The top of the base plate 22 is fixedly connected with a cylinder 24. The cylinder body of the cylinder 24 is usually made of cast iron or high-strength aluminum alloy, and the internal piston and other moving parts are made of wear-resistant alloy steel. The driving end of the cylinder 24 is fixedly connected with a telescopic column 25. The telescopic column 25 is a cylindrical metal rod with a surface Smooth, and can perform linear telescopic motion under the drive of cylinder 24. The outside of the sliding frame 26 is fixedly connected to the outside of the sliding frame 26. The outside of the sliding frame 26 is fixedly connected with a rack 27. The rack 27 is a long strip of component made of metal, and its shape has an evenly spaced tooth structure. The top of the bottom plate 22 is rotatably connected to gear 28. Gear 28 is a circular metal gear, which consists of a central hub and surrounding gear teeth. The gear teeth match the tooth shape of the rack 27. The top of the sliding frame 26 is fixedly connected with a vertical plate 29. The vertical plate 29 is a rectangular metal plate. It is perpendicular to the top plane of the sliding frame 26 and plays the role of supporting and connecting other components. The outside of the vertical plate 29 is fixedly connected with a support plate 30. The support plate 30 is a rectangular metal plate. Its main function is to provide stable support for the components above.

[0040] The top of the support plate 30 is fixedly connected to a motor 2 31. The outer shell of the motor 2 31 is usually made of metal, and the interior contains components such as a stator and a rotor. The driving end of the motor 2 31 is fixedly connected to a rotating column 2 32. The rotating column 2 32 is a cylindrical rotating shaft made of high-strength alloy steel. The surface is precisely machined and can rotate smoothly under the drive of the motor 2 31. The outside of the rotating column 2 32 is fixedly connected to a clamping block 1 33. The clamping block 1 33 is a block-shaped metal component that can rotate with the rotation of the rotating column 2 32 and is mainly used to clamp objects. The outside of the other vertical plate 29 is fixedly connected to a fixed column 34. The fixed column 3 4 is a cylindrical metal column, which plays a supporting and connecting role. The internal rotation connection of the fixed column 34 is connected to the rotating column 35. The rotating column 35 is a cylindrical metal rod that can rotate inside the fixed column 34. The external of the rotating column 35 is fixedly connected to the clamping block 2 36. The clamping block 2 36 is also a block-shaped metal component, and its shape matches the clamping block 1 33. The top of the operating table 1 is fixedly connected to a storage box 37 for storing related materials. The bottom of the operating table 1 is fixedly connected to a plurality of supporting legs 38. The supporting legs 38 are square metal rods. Their main function is to support the entire operating table 1 so that the operating table 1 can be stably placed on the ground.

[0041] Working Principle: First, cylinder 19 begins operating, pushing telescopic column 10 outward and driving connecting plate 11 forward. At this point, motor 14 in the drive assembly is also activated, and rotating column 15 begins to rotate, driving rotating plate 17 and fan-shaped wheel 18 to move. Gear 19 engages with fan-shaped wheel 18, further transmitting power to rotate rotating plate 21. It rotates to the groove of the cutter head, and spring 4 of connecting block 3 is compressed. At this time, the stop ball 5 moves outward under the action of spring 4, releasing the cutter head 6 from connecting block 3, allowing it to be replaced. The entire process is highly automated, effectively reducing manual intervention, improving production efficiency, and ensuring the accuracy and stability of tool replacement. After the tool change is completed, the fixture immediately enters the next processing cycle and continues the CNC machining task.

[0042] Cylinder 2 (24) is also activated, extending telescopic column 2 (25) outward, pushing slide 26 along fixed bar 23. This causes clamping blocks 1 (33) and 2 (36) to open and clamp the new tool. After clamping blocks 1 (33) and 2 (36) secure the new tool, motor 2 (31) begins operating, rotating column 2 (32) and rotating clamping block 1 (33), ensuring the tool is securely clamped.

[0043] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fixture for CNC machining with automatic tool change, comprising an operating table (1), characterized in that: The top of the operating table (1) is fixedly connected to a support frame 1 (2), the top of the support frame 1 (2) is fixedly connected to a disassembly component for providing quick separation, the top of the operating table (1) is fixedly connected to two linear guide rails (7), the top of the linear guide rail (7) is fixedly connected to a support frame 2 (8), the top of the support frame 2 (8) is fixedly connected to a power component for providing pushing and retracting force, the power component is fixedly connected to a plurality of connecting columns 1 (12), the outside of the connecting column 1 (12) is fixedly connected to a connecting frame (13), the top of the connecting frame (13) is fixedly connected to a driving component for providing rotational power, the driving component is fixedly connected to a rotating plate (17), the outside of the rotating plate (17) is rotatably connected to a fan-shaped wheel (18), the inside of the connecting frame (13) is rotatably connected to a connecting column 2 (20), the top of the connecting column 2 (20) is fixedly connected to a gear 1 (19), and the bottom of the connecting column 2 (20) is fixedly connected to a rotating plate (21).

2. The fixture for automatic tool change for CNC machining according to claim 1, characterized in that: The disassembly assembly comprises a connecting block (3), the interior of the connecting block (3) is fixedly connected to a plurality of springs (4), the exterior of the springs (4) is fixedly connected to a limiting ball (5), the exterior of the limiting ball (5) is slidably connected to a cutter head (6), and the top of the connecting block (3) is fixedly connected to the top of the support frame (2).

3. The fixture for automatic tool change in CNC machining according to claim 1, characterized in that: The power assembly includes a cylinder (9), a driving end of the cylinder (9) is fixedly connected to a telescopic column (10), the outside of the telescopic column (10) is fixedly connected to a connecting plate (11), and the bottom of the cylinder (9) is fixedly connected to the top of the support frame (8).

4. The fixture for automatic tool change for CNC machining according to claim 1, characterized in that: The driving assembly includes a motor (14), a driving end of the motor (14) is fixedly connected to a rotating column (15), an exterior of the rotating column (15) is fixedly connected to a limiting column (16), and a bottom of the motor (14) is fixedly connected to the top of the connecting frame (13).

5. The fixture for automatic tool change in CNC machining according to claim 1, characterized in that: The top of the operating table (1) is fixedly connected to a base plate (22), the top of the base plate (22) is fixedly connected to two fixing bars (23), the top of the fixing bars (23) is slidably connected to a sliding frame (26), the top of the base plate (22) is fixedly connected to a second cylinder (24), the driving end of the second cylinder (24) is fixedly connected to a second telescopic column (25), and the outside of the sliding frame (26) is fixedly connected to the outside of the sliding frame (26).

6. The fixture for automatic tool change in CNC machining according to claim 5, characterized in that: The outside of the sliding frame (26) is fixedly connected to a rack (27), the top of the bottom plate (22) is rotatably connected to a gear 2 (28), and the top of the sliding frame (26) is fixedly connected to a vertical plate (29).

7. The fixture for automatic tool change in CNC machining according to claim 6, characterized in that: The outside of the vertical plate (29) is fixedly connected to a support plate (30), the top of the support plate (30) is fixedly connected to a second motor (31), the driving end of the second motor (31) is fixedly connected to a second rotating column (32), and the outside of the second rotating column (32) is fixedly connected to a first clamping block (33).

8. The fixture for automatic tool change in CNC machining according to claim 6, characterized in that: The outside of the other vertical plate (29) is fixedly connected to a fixed column (34), the inside of the fixed column (34) is rotatably connected to a rotating column (35), and the outside of the rotating column (35) is fixedly connected to a clamping block 2 (36).

9. The fixture for automatic tool change in CNC machining according to claim 1, characterized in that: The top of the operating table (1) is fixedly connected to a storage box (37), and the bottom of the operating table (1) is fixedly connected to a plurality of supporting legs (38).

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