Numerical control five-axis machining device with quick tool changing device

Abstract

The utility model relates to the technical field of numerical control five-axis machining, and discloses a numerical control five-axis machining device with a quick tool changer, which comprises a cabinet body, a rotating column is arranged at the bottom of a top plate, a telescopic column is fixedly connected to the side wall of a connecting plate, one end of the telescopic column is fixedly connected with a base plate, and a vertical plate is fixedly connected to the side wall of the connecting plate. And an air cylinder is fixedly connected to the interior of the vertical plate, a sliding block is fixedly connected to the output end of the air cylinder, a limiting plate is fixedly connected to the side wall of the base plate, and a sliding groove is formed in the limiting plate. According to the utility model, firstly, the cylinder pushes the sliding block, the sliding column and the limiting plate to lift up to drive the base plate to move, when a new cutter is manually placed into the clamp, the clamp is extruded to rotate to drive the fixing plate to enable the spring to contract, and after the cutter is placed, the spring rebounds to push the clamp to reset and fix the cutter, so that the problems of low cutter changing efficiency and complex clamping mechanism in the prior art are solved; and the tool changing speed and the tool fixing stability are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control five-axis machining, in particular to a numerical control five-axis machining device with a rapid tool changing device. Background Art

[0002] In today's manufacturing industry, CNC five-axis machining technology is widely used because it can perform high-precision machining of workpieces with complex shapes. In the CNC five-axis machining process, due to the diversity of machining procedures, it is often necessary to frequently replace tools. A CNC five-axis machining device with a quick tool change device has become a key factor in improving machining efficiency and quality. As modern manufacturing industry develops towards small batches, multiple varieties, and high precision, machining tasks have become more and more complex and diverse, and the requirements for CNC five-axis machining devices are also increasing. It is not only required to be able to quickly and accurately complete the machining of various complex shapes, but also required to minimize downtime when changing tools. The emergence of this CNC five-axis machining device with a quick tool change device is precisely to meet the urgent needs of modern manufacturing industry for efficient and high-precision CNC machining.

[0003] The tool changing devices of existing CNC five-axis machining centers usually rely on relatively complex transmission systems and positioning structures. For example, some use a multi-axis linkage robotic arm structure to grasp and replace tools. A series of sensors and controllers are used to realize the movement and positioning of the robotic arm between the tool library and the machining spindle, and a traditional fixture structure is used to fix the tool. These structures often involve multiple motors, complex transmission chains or belts and other components working together.

[0004] However, this traditional tool changing device has many problems, among which the low efficiency in tool selection and delivery is a more prominent problem. When selecting tools, the traditional tool changing device lacks an efficient positioning mechanism, which makes the process of determining the target tool more cumbersome and time-consuming. Moreover, when delivering the tool, due to the complexity of its structure and operation process, the tool cannot be delivered to the specified position quickly, which greatly affects the speed of the entire tool change. In addition, the traditional tool clamping mechanism design is not simple and efficient enough, and is often complex in structure and inconvenient to operate. This not only increases the equipment cost, but also is prone to failure during use, affecting the timeliness of tool change and the reliability of tool fixation, and thus has an adverse effect on processing efficiency and processing accuracy. For this reason, a CNC five-axis machining device with a rapid tool changing device is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above deficiencies, the utility model provides a CNC five-axis machining device with a quick tool changing device, aiming to improve the problems of low tool changing efficiency and complex clamping mechanism design in the prior art.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] The top of the cabinet is fixedly connected to the top plate, and a rotating assembly is provided inside the top plate. The rotating assembly is used to control the rotation of the bottom equipment. The bottom of the top plate is provided with a rotating column, and the outer wall of the rotating column is fixedly connected to the connecting plate of an annular array. The side wall of the connecting plate is fixedly connected to the telescopic column, and one end of the telescopic column is fixedly connected to the base plate. The side wall of the base plate is provided with a clamping assembly, and the clamping assembly is used to clamp the tool. The side wall of the connecting plate is fixedly connected to the vertical plate, and the interior of the vertical plate is fixedly connected to the cylinder, and the output end of the cylinder is fixedly connected to the slider, and the left and right side walls of the slider are fixedly connected to the sliding column, and the side wall of the base plate is fixedly connected to the limit plate, and a slide groove is provided inside the limit plate, and the slide column is slidably connected to the inside of the slide groove;

[0008] As a further description of the above technical solution:

[0009] The processing assembly includes a cabinet, an upper workbench is slidably connected to the top of the inner wall of the cabinet, and a cutting blade is fixedly connected to the side wall of the upper workbench;

[0010] As a further description of the above technical solution:

[0011] The bottom of the inner wall of the cabinet is slidably connected to a lower workbench, the inner wall of the lower workbench is rotatably connected to a clamping table, and the bottom of the cabinet is fixedly connected to a bottom plate;

[0012] As a further description of the above technical solution:

[0013] The upper surface of the bottom plate is fixedly connected to a supporting leg, the top of the supporting leg is fixedly connected to a supporting plate, and the upper surface of the supporting plate is fixedly connected to the bottom of the cabinet;

[0014] As a further description of the above technical solution:

[0015] The rotating assembly includes a driving motor, the output end of the driving motor is fixedly connected to a sun gear, the side wall of the sun gear is fixedly connected to a rotating column, the outer wall of the sun gear is provided with a planetary gear, the planetary gear is meshed with the sun gear, the outer wall of the planetary gear is provided with a gear ring, the gear ring is meshed with the planetary gear, and the bottom of the planetary gear is fixedly connected to a roller brush;

[0016] As a further description of the above technical solution:

[0017] The clamping assembly includes a base, the base is fixedly connected to the side wall of the base, a clamp is rotatably connected inside the base, a fixing plate is fixedly connected to the side wall of the clamp, a spring is provided between the fixing plate and the base, and both ends of the spring are respectively fixed to the base and the side wall of the fixing plate;

[0018] As a further description of the above technical solution:

[0019] A protective cover is provided on the outside of the fixing plate, a take-in and put-out opening is provided inside the protective cover, a connecting column is fixedly connected to the outer wall of the protective cover, and one end of the connecting column is fixedly connected to the cabinet body;

[0020] As a further description of the above technical solution:

[0021] A chip tray is provided at the bottom of the protective cover, and the chip tray is slidably connected to the inner wall of the cabinet.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, the motor is first driven to rotate to the corresponding angle so that the required tool is aligned with the pick-up and placement port. Then the cylinder on the connecting plate works to push the slider to move. The slider drives the sliding column to move, prompting the limit plate to lift up. The limit plate drives the base plate to move, and the staff can manually take out the tool and change the tool. When the new tool is placed in the fixture, the fixture is squeezed and rotated to both sides, driving the fixed plate to move, causing the spring to contract. After the tool is placed, the spring rebounds and pushes the fixture to reset to fix the tool. This solves the problems of low efficiency and complex clamping mechanism design of traditional tool changing, and improves the tool changing speed and tool fixation stability.

[0024] 2. In the utility model, when the tool is placed in place, the driving motor drives the sun gear to rotate, and the sun gear drives the planetary gear to rotate, prompting the roller brush to start rotating. The metal debris swept out by the roller brush falls into the chip collecting tray through the bottom of the protective cover, thereby realizing the rapid cleaning of the tool after use, solving the problem of inconvenient tool cleaning and easy residual metal debris affecting subsequent processing, improving the tool cleaning efficiency and the stability of the processing process, reducing the tool wear and reduced processing accuracy caused by residual debris, etc., and helping to improve the overall quality and efficiency of CNC processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional schematic diagram of a CNC five-axis machining device with a rapid tool changing device proposed by the present invention;

[0026] Figure 2 This is a schematic diagram of the protective cover structure of a CNC five-axis machining device with a quick tool changing device proposed by the utility model;

[0027] Figure 3This is a schematic diagram of the sun gear structure of a CNC five-axis machining device with a rapid tool change device proposed by the utility model;

[0028] Figure 4 This is a schematic diagram of the substrate structure of a CNC five-axis machining device with a rapid tool changing device proposed in the present invention;

[0029] Figure 5 This is a schematic diagram of the slide structure of a CNC five-axis machining device with a rapid tool changing device proposed by the utility model.

[0030] Legend:

[0031] 1. Cabinet body; 2. Top plate; 3. Protective cover; 4. Connecting column; 5. Chip tray; 6. Drive motor; 7. Rotating column; 8. Connecting plate; 9. Telescopic column; 10. Base plate; 11. Base; 12. Clamp; 13. Fixed plate; 14. Spring; 15. Vertical plate; 16. Cylinder; 17. Slider; 18. Sliding column; 19. Limit plate; 20. Slide; 21. Sun gear; 22. Planetary gear; 23. Ring gear; 24. Rolling brush; 25. Pick-up and drop-out port; 26. Support plate; 27. Support leg; 28. Bottom plate; 29. Cabinet; 30. Upper workbench; 31. Cutting knife; 32. Lower workbench; 33. Clamping table. DETAILED DESCRIPTION

[0032] 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.

[0033] Reference Figure 1 、 Figure 2 、 Figure 4 and Figure 5A CNC five-axis machining device with a quick tool changing device includes a cabinet 1. The cabinet 1 is usually made of high-strength steel, has good rigidity and stability, and can withstand various forces and vibrations generated during the machining process. The side wall of the cabinet 1 is provided with a machining component, which is used to process parts. The inner wall of the cabinet 1 is fixedly connected to a top plate 2, and a rotating component is provided inside the top plate 2. The rotating component is used to control the rotation of the bottom equipment. A rotating column 7 is provided at the bottom of the top plate 2. The rotating column 7 is made of carbon steel, which is a common and low-cost material. At the same time, it has high strength and hardness and can withstand certain axial loads and torques. The rotating column 7 is mainly used to carry clamping components and other equipment. The outer wall of the rotating column 7 is fixedly connected with a ring array of connecting rods. The connecting plate 8 is a component made of high-strength steel plate, which provides a stable installation foundation for the cylinder 16 and other related components. The side wall of the connecting plate 8 is fixedly connected to the telescopic column 9, and one end of the telescopic column 9 is fixedly connected to the base plate 10. A plurality of holes are provided on the base plate 10, which can be used to fix and install the clamping assembly. The side wall of the base plate 10 is provided with a clamping assembly, which is used to clamp the tool. The side wall of the connecting plate 8 is fixedly connected to the vertical plate 15, and the cylinder 16 is fixedly connected inside the vertical plate 15. The output end of the cylinder 16 is fixedly connected to the slider 17. The slider 17 is a block component made of wear-resistant nylon material. This material has a low friction coefficient and sufficient strength to withstand the pushing force. The left and right side walls of the slider 17 are fixedly connected to the sliding column 18. The sliding column 18 is A steel column with a chrome-plated surface. The chrome-plated layer can effectively prevent the sliding column 18 from rusting and improve the smoothness of its surface, thereby reducing the friction between the sliding column 18 and the limit plate 19. The side wall of the base plate 10 is fixedly connected to the limit plate 19. A slide groove 20 is provided inside the limit plate 19. The sliding column 18 is slidably connected inside the slide groove 20. The processing assembly includes a cabinet 29. The top of the inner wall of the cabinet 29 is slidably connected to an upper workbench 30. The side wall of the upper workbench 30 is fixedly connected to a cutting knife 31. The cutting knife 31 is used for cutting metal blocks. The bottom of the inner wall of the cabinet 29 is slidably connected to a lower workbench 32. The inner wall of the lower workbench 32 is rotatably connected to a clamping table 33. The clamping table 33 is made of steel and has undergone a special heat treatment process to give it sufficient hardness. and toughness, and can firmly clamp the parts to be processed. The bottom of the cabinet 29 is fixedly connected to a base plate 28, which is made of aluminum alloy and provides stable support for the entire processing assembly. The upper surface of the base plate 28 is fixedly connected to a support leg 27, and the top of the support leg 27 is fixedly connected to a support plate 26. The support leg 27 and the support plate 26 are used to support the entire cabinet 1 and provide a stable foundation. The upper surface of the support plate 26 is fixedly connected to the bottom of the cabinet 1. The clamping assembly includes a base 11, which is fixedly connected to the side wall of the base plate 10. The base 11 is rotatably connected to the inside of the base 11. The clamp 12 is composed of two symmetrical clamping arms. The clamping arms are made of high-quality alloy steel with good elasticity and toughness, and their surfaces are quenched and tempered to improve hardness and wear resistance.Its inner wall is made of rubber material, which can effectively protect and clamp the tool. The side wall of the clamp 12 is fixedly connected to the fixed plate 13. A spring 14 is provided between the fixed plate 13 and the base plate 10. The two ends of the spring 14 are respectively fixed to the base plate 10 and the side wall of the fixed plate 13. A protective cover 3 is provided on the outside of the fixed plate 13. The protective cover 3 is a semi-enclosed metal cover made of stainless steel sheet with a matte surface treatment, which is both beautiful and can prevent reflections from interfering with the operator. A take-out port 25 is opened inside the protective cover 3. The take-out port 25 is a precision-machined opening with its edges reinforced with wear-resistant alloy steel to prevent wear and deformation during long-term use. The outer wall of the protective cover 3 is fixedly connected to a connecting column 4, and one end of the connecting column 4 is fixedly connected to the cabinet 1.

[0034] Specifically, when using the quick tool changing device, the driving motor 6 starts to rotate first and rotates to the corresponding angle, so that the required tool is aligned with the pick-up and release port 25. At this time, the cylinder 16 located on the connecting plate 8 starts to work and pushes the slider 17 to move forward. The forward displacement of the slider 17 drives the slide post 18 to move as well. The slider 17 and the slide post 18 slide in the slide groove 20 inside the limit plate 19. The shape of the slide groove 20 is low in front and high in the back, so that the slide post 18 can cause the limit plate 19 to lift upward when it moves forward. The limit plate 19 is made of high-strength quenched and tempered steel. After quenching and tempering, it has good comprehensive mechanical properties. The displacement of the limit plate 19 drives the displacement of the base plate 10. The base plate 10 provides a solid basic platform for the entire tool delivery and replacement system. With the upward displacement of the base plate 10, the upward displacement of the entire clamping assembly is driven, which is convenient for the staff to take the tool. At this time, the staff manually takes out the tool and puts the replaced tool between the clamps 12. The clamps 12 are under the tool The extrusion rotates to both sides and drives the fixed plate 13 to move. The fixed plate 13 is a rectangular metal plate made of aluminum alloy, which has light weight and good machining performance. The displacement of the fixed plate 13 prompts the contraction of the spring 14, which is a high-strength coil spring with high elastic limit and good fatigue resistance. When the tool is placed in place, the spring 14 rebounds, pushing the fixed plate 13 and the clamp 12 to reset, thereby fixing the tool, thereby achieving the effect of quickly delivering the tool and firmly locking the tool. Rapid tool delivery helps to achieve seamless connection of processing tasks. When one processing step is completed, the next tool can be quickly put in place and accurately locked, so that the processing process can be carried out continuously, avoiding processing interruptions caused by tool replacement problems. At the same time, the clamping assembly adopts a simple design, its structure is relatively simple, and the number of materials and parts used is small, which greatly reduces its manufacturing cost and makes maintenance relatively easy. There is no complex internal structure, which reduces the probability of failure.

[0035] Reference Figure 3The rotating assembly includes a drive motor 6, which adopts a high-performance servo motor. This motor has the characteristics of high precision, high torque and fast response, and can accurately control the rotation angle. The output end of the drive motor 6 is fixedly connected to the sun gear 21. The side wall of the sun gear 21 is fixedly connected to the top of the rotating column 7. The outer wall of the sun gear 21 is provided with a planetary gear 22. The sun gear 21 is a gear with a high-precision involute tooth shape. It is forged from chromium-molybdenum alloy steel with high strength and good wear resistance, so that it can withstand large weight and torque. The planetary gear 22 is meshed with the sun gear 21. The outer wall of the planetary gear 22 is provided with a gear ring 23. The gear ring 23 is made of light weight and high strength aluminum alloy material. The material is formed by a die-casting process, which can reduce its own weight while ensuring strength. The gear ring 23 is meshed with the planetary gear 22. A roller brush 24 is fixedly connected to the bottom of the planetary gear 22. The brush head of the roller brush 24 is composed of a large number of nylon bristles. These bristles have good flexibility and wear resistance and can effectively clean metal debris on the surface of the tool without scratching the tool. The skeleton is made of stainless steel to provide a stable support for the bristles. Grooves are provided between the bristles so that the debris brushed down can fall down along the grooves. A chip tray 5 is provided at the bottom of the protective cover 3. The chip tray 5 is used to receive the fallen metal debris. The chip tray (5) is slidably connected to the inner wall of the cabinet 1.

[0036] Specifically, when the tool is placed in place, the drive motor 6 starts to run and drives the sun gear 21 to rotate. The rotation of the sun gear 21 drives the rotation of the planetary gear 22. The planetary gear 22 is installed on the planetary carrier through a needle bearing. The needle bearing can withstand a large radial load and has low friction, ensuring the flexibility of the rotation of the planetary gear 22. The rotation of the planetary gear 22 further prompts the rolling brush 24 to start rotating. The metal debris swept by the rolling brush 24 falls into the chip tray 5 through the bottom of the protective cover 3. The bottom of the protective cover 3 is provided with holes and is designed to be funnel-shaped to ensure that the metal debris can be smoothly guided to the bottom. The chip tray 5 is a detachable disc-shaped container made of engineering plastic and has good durability. The chip tray 5 is designed with a certain slope at the bottom to facilitate the collection of metal debris in one place, thereby achieving the effect of quickly cleaning the tool after use. During the processing, metal debris, oil stains and other impurities will adhere to the surface of the tool. If they are not cleaned in time, these impurities will increase the wear of the tool when the tool is used again. For example, metal debris near the cutting edge of the tool will act like tiny abrasive particles during subsequent cutting, aggravating the wear of the tool edge. Quickly cleaning the tool can remove these wear sources in time, thereby extending the service life of the tool. At the same time, it also ensures that the tool can maintain its original precision each time it is used, ensuring the stability of the processing quality.

[0037] Working principle: When using the quick tool changing device, first drive the motor 6 to rotate to the corresponding angle and align the required tool with the pick-up and release port 25. At this time, the cylinder 16 located on the connecting plate 8 starts to work, pushing the slider 17 to move. The displacement of the slider 17 drives the slide post 18 to move as well. The displacement of the slider 17 and the slide post 18 prompts the limit plate 19 to lift upward. The displacement of the limit plate 19 drives the displacement of the base plate 10. At this time, the staff manually takes out the tool and puts the replaced tool between the fixtures 12. The fixture 12 is squeezed by the tool and rotates to both sides, driving the fixed plate 13 to move The displacement of the fixing plate 13 causes the spring 14 to contract. When the tool is placed in place, the spring 14 rebounds, pushing the fixing plate 13 and the clamp 12 to reset, thereby fixing the tool, thereby quickly delivering the tool and firmly locking the tool. When the tool is placed in place, the drive motor 6 drives the sun gear 21 to rotate, and the rotation of the sun gear 21 drives the rotation of the planetary gear 22, further prompting the rolling brush 24 to start rotating. The metal debris swept out by the rolling brush 24 falls into the chip tray 5 through the bottom of the protective cover 3, thereby achieving the effect of quickly cleaning the tool after use.

[0038] 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 CNC five-axis machining device with a rapid tool change device, comprising a cabinet (1), characterized in that: The cabinet (1) is provided with a processing assembly on the side wall, and the processing assembly is used to process parts. The cabinet (1) is fixedly connected to the inner wall with a top plate (2), and a rotating assembly is provided inside the top plate (2), and the rotating assembly is used to control the bottom device to rotate. The top plate (2) is provided with a rotating column (7) at the bottom, and the outer wall of the rotating column (7) is fixedly connected to a connecting plate (8) in an annular array. The side wall of the connecting plate (8) is fixedly connected to a telescopic column (9), and one end of the telescopic column (9) is fixedly connected to a base plate (10). The base plate (1 0) The side wall is provided with a clamping assembly, and the clamping assembly is used to clamp the tool. The side wall of the connecting plate (8) is fixedly connected to a vertical plate (15), and the interior of the vertical plate (15) is fixedly connected to a cylinder (16). The output end of the cylinder (16) is fixedly connected to a slider (17), and the left and right side walls of the slider (17) are fixedly connected to a slide column (18). The side wall of the base plate (10) is fixedly connected to a limit plate (19), and a slide groove (20) is provided inside the limit plate (19), and the slide column (18) is slidably connected inside the slide groove (20).

2. The CNC five-axis machining device with a rapid tool change device according to claim 1, characterized in that: The processing assembly comprises a cabinet (29), an upper workbench (30) is slidably connected to the top of the inner wall of the cabinet (29), and a cutting blade (31) is fixedly connected to the side wall of the upper workbench (30).

3. The CNC five-axis machining device with a rapid tool change device according to claim 2, characterized in that: The bottom of the inner wall of the cabinet (29) is slidably connected to a lower workbench (32), the inner wall of the lower workbench (32) is rotatably connected to a clamping platform (33), and the bottom of the cabinet (29) is fixedly connected to a base plate (28).

4. The CNC five-axis machining device with a rapid tool change device according to claim 3, characterized in that: The upper surface of the bottom plate (28) is fixedly connected to a support leg (27), the top of the support leg (27) is fixedly connected to a support plate (26), and the upper surface of the support plate (26) is fixedly connected to the bottom of the cabinet (1).

5. The CNC five-axis machining device with a rapid tool change device according to claim 1, characterized in that: The rotating assembly comprises a driving motor (6), the output end of the driving motor (6) is fixedly connected to a sun gear (21), the side wall of the sun gear (21) is fixedly connected to the top of the rotating column (7), the outer wall of the sun gear (21) is provided with a planetary gear (22), the planetary gear (22) is meshed with the sun gear (21), the outer wall of the planetary gear (22) is provided with a gear ring (23), the gear ring (23) is meshed with the planetary gear (22), and the bottom of the planetary gear (22) is fixedly connected to a roller brush (24).

6. The CNC five-axis machining device with a rapid tool change device according to claim 5, characterized in that: The clamping assembly includes a base (11), the base (11) is fixedly connected to the side wall of the substrate (10), a clamp (12) is rotatably connected inside the base (11), the side wall of the clamp (12) is fixedly connected to a fixed plate (13), a spring (14) is provided between the fixed plate (13) and the substrate (10), and two ends of the spring (14) are respectively fixed to the side wall of the substrate (10) and the fixed plate (13).

7. The CNC five-axis machining device with a rapid tool change device according to claim 6, characterized in that: A protective cover (3) is provided on the outside of the fixing plate (13), a take-in / out opening (25) is provided inside the protective cover (3), a connecting column (4) is fixedly connected to the outer wall of the protective cover (3), and one end of the connecting column (4) is fixedly connected to the cabinet (1).

8. The CNC five-axis machining device with a rapid tool change device according to claim 7, characterized in that: A chip tray (5) is provided at the bottom of the protective cover (3), and the chip tray (5) is slidably connected to the inner wall of the cabinet (1).

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