Quick tool changing device for numerical control machine tool

By improving the quick tool changing device of the CNC machine tool, using structures such as the support table, rotating components and sliding components to achieve stable clamping, and combining the sealing and oil injection filtration system, the problem of unstable clamping in high-speed and high-precision machining is solved, the machining quality and tool head life are improved, and the scope of application is expanded.

CN120696813AInactive Publication Date: 2025-09-26临沂职业学院
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Patent Information

Application Number
CN202510682479.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-26
Publication Date
2025-09-26
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The rapid tool changing device of existing CNC machine tools has the problem of unstable clamping during high-speed and high-precision processing, which leads to a decrease in processing quality.

Method used

The support platform, rotating assembly, sliding assembly, reset assembly and sealing assembly are coordinated to achieve a stable clamping of the cutter head, and the sealing assembly is used to prevent the cutter head surface from being exposed. Combined with the oil injection and filtration system, efficient oil management and filtration are achieved.

Benefits of technology

It improves the stability and processing quality of high-speed and high-precision processing, extends the service life of the cutter head, reduces oil waste, and expands the scope of application of the device.

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Abstract

The invention relates to the technical field of numerical control machine tools, and discloses a quick tool changing device for a numerical control machine tool, which comprises a supporting table, the top side of the supporting table is fixedly connected with a processing box, the front end of the processing box is slidably connected with a cover plate, the top side of the inner wall of the processing box is in contact with a fixed box, and the inner wall of the fixed box is provided with a rotating assembly. A rotating handle is fixedly connected to the front side of the rotating assembly, a square block is connected to the outer portion of the rotating assembly in a threaded mode, connecting plates are fixedly connected to the left side and the right side of the square block, and fixing rods are fixedly connected to the top sides of the connecting plates. According to the device, the tool bit can be clamped and fixed, workpieces with high-speed and high-precision requirements can be clamped, unstable clamping is avoided, the device can further flexibly clamp the workpieces, then the device can adapt to the workpieces of various shapes, sizes and materials, and a special clamp does not need to be customized.
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Description

Technical Field

[0001] The present invention relates to the technical field of numerically controlled machine tools, and in particular to a rapid tool changing device for numerically controlled machine tools. Background Art

[0002] A CNC machine tool is a machine tool that uses a computer control system to automate machining operations. Pre-programmed machining programs and instructions control the machine's moving parts to complete workpiece machining tasks. Compared to traditional manual or semi-automatic machine tools, CNC machine tools offer higher precision, higher productivity, and greater flexibility.

[0003] After searching, the Chinese patent document publication number: CN213561284U discloses a quick-changing device for milling cutters for CNC machine tools, which relates to the technical field of CNC machine tools and includes a machine tool base, a CNC unit housing is fixedly installed on the left side of the top surface of the machine tool base, a heat dissipation window is embedded in the left side of the CNC unit housing, a CNC unit is fixedly installed in the inner cavity of the CNC unit housing, and a tool assembly clamping seat located on the right side of the CNC unit housing is fixedly installed on the drive shaft of the CNC unit. A special magnetic bearing is fixedly sleeved on the outside of the tool assembly clamping seat. In the above scheme, a strong electromagnet inside the clamping shell is energized to generate a strong magnetic force, which is transmitted to the tool assembly clamping seat and the magnetic card plate through the special magnetic bearing. The magnetism of the tool assembly clamping seat and the magnetic card plate is used to firmly fix the milling cutter body in the clamping groove of the tool assembly clamping seat. The milling cutter body is fixed by magnetic adsorption connection, which facilitates the rapid disassembly and replacement of the milling cutter and improves the practicality of the device.

[0004] Regarding the above-mentioned related technologies, the inventor believes that the above patent mentioned in the beneficial effects: "In the above scheme, the powerful electromagnet inside the snap shell is energized to generate strong magnetic force, and the magnetic force is transmitted to the tool group clamping seat and the magnetic card plate through the special magnetic bearing. The magnetism of the tool group clamping seat and the magnetic card plate is used to firmly fix the milling cutter body in the clamping groove of the tool group clamping seat, and the milling cutter body is fixed by magnetic adsorption connection, which facilitates the rapid disassembly and replacement of the milling cutter and improves the practicality of the device; the sleeve collar is combined with three equidistantly distributed fan blades and a special milling cutter to form a fan, and the fan is used to drive air to produce the workpiece milled by the special milling cutter. The chips enter the chip collection box through the chip inlet and the chip recovery bucket, and are then filtered and adsorbed by the adsorption permanent magnet in conjunction with the filter screen to concentrate the chips inside the chip collection box, which not only improves the kinetic energy utilization of the machine tool and saves energy, but also facilitates the recovery of chips, reduces the personal workload, and improves the practicality of the device. Although the above patent replaces the tool head by magnetic attraction, it cannot provide sufficient clamping stability during the actual operation. Especially when processing workpieces with high speed and high precision requirements, unstable clamping will occur, resulting in a decrease in processing quality. Therefore, in response to the above shortcomings, a quick tool changing device for CNC machine tools is proposed. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a quick tool changing device for CNC machine tools, which aims to improve the prior art of disassembling the tool head by magnetic attraction, resulting in the problem of unstable clamping when the device faces workpieces with high-speed and high-precision requirements.

[0006] To achieve the above object, the present invention provides the following technical solutions: The top of described sliding panel also is provided with an interlocking structure, and the interlocking structure is hinged on the base plate, is fixed with a backing pin on the interlocking structure, and an end of sliding panel withstands on the backing pin of interlocking structure.

[0007] Furthermore, the two reset assemblies each include a splint, a square plate is fixedly connected to the far side of the two splints, a trapezoidal block is fixedly connected to the far side of the two square plates, a T-shaped opening is provided at the far end of the sliding box, a spring 1 is fixedly connected to the front and rear sides of the inner wall of the sliding box, a plurality of springs 1 are fixedly connected to the near side of each other with a triangular block, a plurality of triangular blocks are fixedly connected to the far side of each other with a square block, a plurality of square blocks are fixedly connected to the far side of each other with a sliding block, and a sealing assembly is provided on the outside of the fixed box.

[0008] Furthermore, the sealing assembly includes a sealing frame, the inner wall of the sealing frame is slidably connected to the outer wall of the fixed box, the outer wall of the fixed box is fixedly connected to the sealing box, the left and right sides of the sealing box are fixedly connected to vertical blocks, the inner wall of the vertical blocks is slidably connected to buttons, the adjacent sides of the two buttons are fixedly connected to limiting plates, a limiting assembly is provided on the bottom side of the button, and a trapezoidal slider is fixedly connected to the bottom side of the limiting assembly.

[0009] Furthermore, the rear end of the top side of the support platform is fixedly connected to an oil storage barrel, the bottom side of the oil storage barrel is fixedly connected to a lower oil pipe, the top of the rear end of the processing box is fixedly connected to a square column, the inner wall of the bottom end of the square column is fixedly connected to a nozzle, the rear end of the nozzle is fixedly connected to a switching tube, the inner wall of the rear end of the processing box is fixedly connected to a protective box, the inner wall of the protective box is fixedly connected to a driving assembly, the top outside of the driving assembly is fixedly connected to a disc, and oil holes are opened all around the disc. The bottom end is fixedly connected to a driving bevel gear, the inner wall of the support platform is rotatably connected to a driven shaft, the rear end of the driven shaft is fixedly connected to a driven bevel gear, the outside of the driven shaft is fixedly connected to two rubber plates, the top of the support platform is slidably connected to a filter frame, the inner wall of the filter frame is fixedly connected to a force plate, the front and rear ends of the bottom of the filter frame are fixedly connected to filter plates, the rear end of the support platform is fixedly connected to an oil extraction pipe, the top side of the oil extraction pipe is fixedly connected to an oil pump, and the output end of the oil pump is fixedly connected to an oil return pipe.

[0010] Furthermore, the rotating assembly includes a circular plate, the outer portion of which is rotatably connected to the rear end inner wall of the fixed box, the front side of the circular plate is fixedly connected to a threaded rod, the front side of the threaded rod is fixedly connected to the rear side of the handle, and the outer portion of the threaded rod is threadedly connected to the inner wall of the block.

[0011] Furthermore, the two sliding assemblies each include a connecting plate, the top sides of the two connecting plates are respectively fixedly connected to the bottom sides of the two support rods, the sliding connections of the two connecting plates are respectively connected to the outside of the limiting rod, the left and right sides of the limiting rod are respectively fixedly connected to the left and right sides of the inner wall of the fixed box, the bottom side of the connecting plate is fixedly connected with a sliding plate, and the adjacent sides of the two sliding plates are respectively fixedly connected to the distant sides of the two sliding boxes.

[0012] Furthermore, the two limiting assemblies each include a connecting block, the bottom sides of the two connecting blocks are respectively slidably connected to the bottom sides of the two buttons, the bottom sides of the buttons are fixedly connected to the top side of the trapezoidal slider, the far sides of the two connecting blocks are fixedly connected to spring 2, and the far sides of the two trapezoidal sliders are respectively fixedly connected to the close sides of the two springs 2.

[0013] Furthermore, the outer parts of the two splints are respectively slidably connected to the inner walls of the two sliding boxes at adjacent ends, the outer parts of the square plates are slidably connected to the inner walls of the sliding boxes, and the far sides of the two trapezoidal blocks are respectively slidably connected to the adjacent sides of the multiple triangular blocks.

[0014] Furthermore, the driving assembly includes a motor, the exterior of the motor is fixedly connected to the inner wall of the protective box, the driving end of the motor is fixedly connected to a rotating shaft, and the top end of the rotating shaft is fixedly connected to the inner wall of the disc.

[0015] Furthermore, one side of the driving bevel gear is meshed with one side of the driven bevel gear, and the exteriors of the two rubber plates are in contact with the bottom sides of the two force-bearing plates respectively.

[0016] The present invention has the following beneficial effects: 1. In the present invention, by using the coordinated use of structures such as the rotating plate, the supporting rod, the connecting plate, the limiting rod, the sliding plate, and the sliding box, the tool head can be clamped and fixed, so that it can clamp workpieces with high speed and high precision, avoid unstable clamping, and thus improve the processing quality. At the same time, by using the mutual cooperation of structures such as the splint, square plate, trapezoidal block, and triangular block, the device can further clamp flexibly, and then can adapt to workpieces of various shapes, sizes, and materials without the need to customize special fixtures, thereby expanding the scope of use of the device.

[0017] 2. In the present invention, by using structures such as the vertical block, button, limit plate, connecting block, trapezoidal slider, etc. in conjunction with each other, the cutter head can be sealed when not in processing, thereby preventing the cutter head surface stained with various debris, oil stains, and sewage from being exposed to the air and causing oxidation and corrosion, thereby extending the service life of the cutter head.

[0018] 3. In the present invention, by using the adapter tube, protective box, motor, rotating shaft, disc, oil lowering and other structures in coordination, oil can be sprayed out when the cutter head and workpiece are processed, and the amount of oil sprayed can be quantitatively controlled to avoid wasting oil. The filtered oil can be repeatedly transported and reused to further avoid waste of oil. At the same time, by using the mutual coordination of the rubber plate, filter frame, force plate, filter plate and other structures, the filter plate can be hit, causing the force plate on the inner wall of the filter frame to vibrate, thereby preventing debris from being blocked together and affecting the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional diagram of a quick tool changing device for a CNC machine tool proposed by the present invention; Figure 2 This is a schematic diagram of the internal structure of a processing box of a rapid tool changing device for a CNC machine tool proposed by the present invention; Figure 3 This is a schematic diagram of the internal structure of a fixed box of a quick tool changing device for a CNC machine tool proposed by the present invention; Figure 4 This is a schematic diagram of the internal structure of a sliding box of a quick tool changing device for a CNC machine tool proposed by the present invention; Figure 5This is a schematic diagram of the internal structure of a vertical block of a rapid tool changing device for a CNC machine tool proposed by the present invention; Figure 6 This is a schematic diagram of the internal structure of a protective box for a quick tool changing device for a CNC machine tool proposed by the present invention; Figure 7 This is a schematic diagram of the internal structure of a support platform of a rapid tool changing device for a CNC machine tool proposed by the present invention.

[0020] Legend: 1. Support table; 2. Processing box; 3. Cover plate; 4. Fixed box; 5. Round plate; 6. Threaded rod; 7. Turning handle; 8. Block; 9. Connecting plate; 10. Fixed rod; 11. Turning plate; 12. Support rod; 13. Connecting plate; 14. Limiting rod; 15. Sliding plate; 16. Sliding box; 17. Strip opening; 18. Clamping plate; 19. Square plate; 20. Trapezoidal block; 21. T-shaped opening; 22. Spring 1; 23. Triangular block; 24. Square block; 25. Sliding block; 26. Sealing frame; 27. Sealing box; 28. , block; 29. ​​button; 30. limit plate; 31. connecting block; 32. trapezoidal slider; 33. spring 2; 34. oil storage barrel; 35. lower oil pipe; 36. square column; 37. nozzle; 38. adapter tube; 39. protective box; 40. motor; 41. rotating shaft; 42. disc; 43. lower oil hole; 44. driving bevel gear; 45. driven shaft; 46. driven bevel gear; 47. rubber plate; 48. filter frame; 49. force plate; 50. filter plate; 51. oil extraction pipe; 52. oil pump; 53. oil return pipe. DETAILED DESCRIPTION

[0021] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0022] Reference Figure 1 - Figure 3The top of the support 1 is fixedly connected to the processing box 2 to prevent chips from splashing. The front end of the processing box 2 is slidably connected to the cover plate 3, which will further prevent water splashing. The top side of the inner wall of the processing box 2 is in contact with the fixed box 4 to provide supporting force for the fixed box 4. The inner wall of the fixed box 4 is provided with a rotating assembly. The rotating assembly includes a circular plate 5, the outer surface of the circular plate 5 is rotatably connected to the rear end inner wall of the fixed box 4, and the circular plate 5 is restricted by the fixed box 4 to prevent the circular plate 5 from falling. The front side of the circular plate 5 is fixedly connected to the rear side of the turning handle 7, and the threaded rod 6 is driven to rotate by holding the turning handle 7. The outer thread of the threaded rod 6 is connected to the inner wall of the block 8, and the block 8 is restricted by contacting the top side of the inner wall of the fixed box 4 so that the threaded rod 6 can drive the block 8 to slide. The front side of the rotating assembly is fixedly connected with a turning handle 7, and the external thread of the rotating assembly is connected with a block 8. The left and right sides of the block 8 are fixedly connected with a connecting plate 9, which drives the connecting plate 9 to slide through the block 8. The top side of the connecting plate 9 is fixedly connected with a fixing rod 10, thereby driving the fixing rod 10 to slide. The external rotation of the fixing rod 10 is connected to a rotating plate 11, which then drives the rotating plate 11 to rotate. The far ends of the two rotating plates 11 are rotatably connected to a supporting rod 12, which is restricted by the supporting rod 12 and enables the rotating plate 11 to drive the supporting rod 12 to slide horizontally. The bottom sides of the two supporting rods 12 are provided with sliding assemblies. The two sliding assemblies include a connecting plate 13, the top sides of the two connecting plates 13 are fixedly connected to the bottom sides of the two supporting rods 12, respectively, to provide supporting force for the supporting rods 12. The sliding connection of the two connecting plates 13 is on the outside of the limiting rod 14, and the connecting plate 13 is restricted by the limiting rod 14 so that the connecting plate 13 can slide horizontally. The left and right sides of the limit rod 14 are respectively fixedly connected to the left and right sides of the inner wall of the fixed box 4, providing support force for the limit rod 14, and the bottom side of the connecting plate 13 is fixedly connected with a sliding plate 15, which drives the sliding plate 15 to slide through the connecting plate 13, and the adjacent sides of the two sliding plates 15 are respectively fixedly connected to the distant sides of the two sliding boxes 16, thereby driving the sliding box 16 to slide. The internal sliding connection of the two sliding components is limited to the limit rod 14, and the adjacent sides of the two sliding components are fixedly connected to the sliding box 16. Strip openings 17 are provided at the left and right ends of the bottom of the fixed box 4 for limiting the activity space of the connecting plate 13, and the inner walls of the two sliding boxes 16 are provided with reset components, and the two reset components include splints 18. The outer sides of the two splints 18 are respectively slidably connected to the inner walls of the adjacent ends of the two sliding boxes 16. The splints 18 are limited by the sliding box 16 so that they can slide horizontally.

[0023] Reference Figure 1 、 Figure 3 and Figure 4 , the two splints 18 are fixedly connected to the far side with a square plate 19, and the splint 18 is subjected to a reaction to push the square plate 19 to slide, the outer sliding of the square plate 19 is connected to the inner wall of the sliding box 16, and the sliding box 16 restricts the square plate 19 to the inside to limit the splint 18, and the two square plates 19 are fixedly connected to the far side with a trapezoidal block 20, and the trapezoidal block 20 is pushed to slide by the square plate 19. A T-shaped opening 21 is opened at the far end of the sliding box 16 to limit the activity space of the square block 24 and the sliding block 25. The sliding box 1 6 are fixedly connected to springs 1 22 on both the front and rear sides of the inner wall, and the far sides of the two trapezoidal blocks 20 are respectively slidably connected to the proximal sides of multiple triangular blocks 23. The proximal sides of multiple springs 1 22 are fixedly connected to the triangular blocks 23. By fixing the two sides of the spring 1 22, the spring 1 22 can be evenly stressed. The far sides of the multiple triangular blocks 23 are fixedly connected to square blocks 24, and the force exerted by the triangular blocks 23 pushes the square blocks 24 to slide. The far sides of the multiple square blocks 24 are fixedly connected to sliding blocks 25, which then push the sliding blocks 25 to slide.

[0024] Reference Figure 1 、 Figure 2 and Figure 5 , a sealing assembly is provided on the outside of the fixed box 4, and the sealing assembly includes a sealing frame 26, the inner wall of the sealing frame 26 is slidably connected to the outer wall of the fixed box 4, and the plasticity of the sealing frame 26 is utilized to make the sealing frame 26 fit tightly with the fixed box 4, and the outer wall of the fixed box 4 is fixedly connected with a sealing box 27 for sealing the cutter head, and the left and right sides of the sealing box 27 are fixedly connected with vertical blocks 28, which are convenient for taking out the sealing box 27, and the inner wall of the vertical block 28 is slidably connected with a button 29, which is restricted by the vertical block 28 so that the button 29 can slide vertically, and the adjacent sides of the two buttons 29 are fixedly connected to the limit plate 30, which is driven by the button 29 to slide and is pressed against the limit plate 30 through the limit plate 30 The button 29 is restricted to prevent the button 29 from slipping. A limiting component is provided on the bottom side of the button 29. The two limiting components include a connecting block 31. The bottom sides of the two connecting blocks 31 are respectively slidably connected to the bottom sides of the two buttons 29. The trapezoidal slider 32 is pushed to slide by the inclined design of the button 29. The bottom side of the button 29 is fixedly connected to the top side of the trapezoidal slider 32. The far sides of the two connecting blocks 31 are fixedly connected to the spring 2 33. The far sides of the two trapezoidal sliders 32 are respectively fixedly connected to the close sides of the two springs 2 33. By fixing the two sides of the spring 2 33, the spring 2 33 can be evenly stressed. The bottom side of the limiting component is fixedly connected to the trapezoidal slider 32.

[0025] Reference Figure 1 、 Figure 6 and Figure 7 The top rear end of the support platform 1 is fixedly connected to an oil storage barrel 34 for storing oil, and the bottom side of the oil storage barrel 34 is fixedly connected to a lower oil pipe 35 for drawing out the oil inside the oil storage barrel 34. The top of the rear end of the processing box 2 is fixedly connected to a square column 36 for providing support for the square column 36. The inner wall of the bottom end of the square column 36 is fixedly connected to a nozzle 37 for providing support for the nozzle 37. The rear end of the nozzle 37 is fixedly connected to a transfer pipe 38 for connecting the nozzle 37 and the lower oil pipe 35. The inner wall of the rear end of the processing box 2 is fixedly connected to a protective box 39 for protecting the motor 40. The inner wall of the protective box 39 is fixedly connected to a drive assembly. The drive assembly includes a motor 40, a drive source, and the outside of the motor 40 is fixedly connected to the inner wall of the protective box 39 so that the motor 40 can operate stably. The driving end of the motor 40 is fixedly connected to a rotating shaft 41, which is driven by the driving motor 40 to drive the rotating shaft 41 to rotate; The top of the rotating shaft 41 is fixedly connected to the inner wall of the disc 42, thereby driving the disc 42 to rotate. The top outside of the driving assembly is fixedly connected to the disc 42, and the disc 42 is driven to rotate by the driving assembly. The disc 42 is provided with lower oil holes 43 on all sides for leaking the oil inside the lower oil pipe 35 to achieve intermittent oil injection. The bottom end of the driving assembly is fixedly connected to a driving bevel gear 44, and the inner wall of the support platform 1 is rotatably connected to a driven shaft 45. The driven shaft 45 is restricted by the support platform 1 so that it can rotate stably. The rear end of the driven shaft 45 is fixedly connected to a driven bevel gear 46, which drives the driven shaft 45 to rotate through the driven bevel gear 46. One side of the driving bevel gear 44 is meshed with one side of the driven bevel gear 46, and the meshed driven bevel gear 46 is driven to rotate by the driving bevel gear 44. The outside of the driven shaft 45 is fixedly connected to two rubber plates 47, which are driven to rotate by the driven shaft 45. The top of the support platform 1 is slidably connected to a filter frame 48 for fixing the force-bearing plate 49. The inner wall of the filter frame 48 is fixedly connected to the force-bearing plate 49 for filtering out oil and debris. The outer sides of the two rubber plates 47 are in contact with the bottom sides of the two force-bearing plates 49 respectively, and the force-bearing plates 49 are hit by the rotation of the rubber plates 47. The front and rear ends of the bottom of the filter frame 48 are fixedly connected to filter plates 50. The rear end of the support platform 1 is fixedly connected to an oil extraction pipe 51 for extracting the oil from the bottom end of the support platform 1. The top side of the oil extraction pipe 51 is fixedly connected to an oil pump 52 for extracting the oil to provide power. The output end of the oil pump 52 is fixedly connected to an oil return pipe 53 for transporting the oil back to the interior of the oil storage barrel 34.

[0026] Working principle: We apply rotational force by holding the turning handle 7 to drive the threaded rod 6 to rotate. At the same time, the threaded rod 6 will drive the circular plate 5 to rotate and be restricted on the inner wall of the fixed box 4, and then the block 8 is attached to the top side of the inner wall of the fixed box 4 for restriction, so that the rotational force given to the block 8 by the threaded rod 6 is converted into a sliding force, which in turn drives the connecting plate 9 to slide, thereby driving the fixed rod 10 to slide, and restricting the rotating plate 11 to the outside of the support rod 12 and the fixed rod 10, so that the fixed rod 10 can drive the connecting plate 9 to rotate, thereby pulling the support rod 12 to slide, so that the two support rods 12 can respectively drive a connecting plate 13 to slide on the outside of the limit rod 14 for restriction, and then drive the two sliding plates 15 to opposite directions. The near side slides, thereby pushing the sliding box 16 to slide, and then pushing the clamping plate 18 to contact the workpiece for fixing. At the same time, the clamping plate 18 is subjected to the reaction force provided by the workpiece to slide on the inner wall of the sliding box 16, and then drives the square plate 19 to slide on the inner wall of the sliding box 16 for restriction, thereby pushing the trapezoidal block 20 to slide, and then the two trapezoidal blocks 20 will respectively push the two triangular blocks 23 to slide to the far side, and drive the square block 24 and the sliding block 25 fixed by the square block 24 to slide on the inner wall of the sliding box 16 for restriction, and at the same time squeeze the spring 1 22, so that the spring 1 22 can store elastic potential energy, and then give the clamping plate 18 a force in the opposite direction, so that it can adapt to different shapes, sizes, and materials of workpieces without the need to customize special fixtures; By supporting the sealing box 27 and driving the sealing frame 26 to slide on the inner wall of the fixed box 4, the plasticity of the sealing frame 26 is used to seal, and at the same time, pressing the button 29 drives the limit plate 30 to slide on the inner wall of the vertical block 28 for restriction, and then pushes the connecting block 31 to slide, thereby driving the trapezoidal slider 32 to slide together and squeeze the spring 2 33, so that the spring 2 33 can store elastic potential energy, and then drives the trapezoidal slider 32 to slide into the inside of the sealing box 27. At this time, the sealing box 27 is sleeved on the inside of the fixed box 4, and the force on the button 29 is released, so that the trapezoidal slider 32 is subjected to the reset force given by the spring 2 33 to slide and engage with the inside of the fixed box 4, completing the sealing of the fixed box 4, preventing the surface of the cutter head stained with various debris, oil stains, and sewage from being exposed to the air and causing oxidation and corrosion, thereby extending the service life of the cutter head; The oil in the oil storage barrel 34 flows through the lower oil pipe 35, stays in the inside of the transfer pipe 38, and then is sprayed out from the nozzle 37 to irrigate the components and the cutter head. At the same time, the driving motor 40 drives the rotating shaft 41 to rotate, thereby driving the disc 42 to rotate, and uses the lower oil hole 43 opened on the outside of the disc 42 to complete the intermittent sealing of the bottom outlet of the lower oil pipe 35 to avoid waste caused by large amounts of oil pouring. The oil with debris will then fall to the top side of the filter plate 50 for filtration, and the rotating shaft 41 will also drive the active bevel gear 44 to The driven bevel gear 46 rotates, thereby driving the driven shaft 45 to rotate through the driven bevel gear 46, thereby driving the rubber plate 47 to rotate and hit the force plate 49, so that the filter plate 50 on the top side is vibrated to prevent debris from being blocked together, thereby improving the filtering effect, and the filtered oil will be stored on the inner wall of the bottom end of the support platform 1. At this time, the oil pump 52 is driven, and the oil extraction pipe 51 at the input end is used to extract the oil at the bottom end of the support platform 1, and then the oil is transported back to the inside of the oil storage barrel 34 through the return oil pipe 53.

[0027] 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 substitutions for some of the technical features therein. Any modifications, equivalent substitutions, 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 rapid tool changing device for a CNC machine tool, comprising a support table (1), characterized in that: The top side of the support platform (1) is fixedly connected to a processing box (2), the front end of the processing box (2) is slidably connected to a cover plate (3), the top side of the inner wall of the processing box (2) contacts a fixed box (4), the inner wall of the fixed box (4) is provided with a rotating assembly, the front side of the rotating assembly is fixedly connected to a turning handle (7), the external thread of the rotating assembly is connected to a block (8), the left and right sides of the block (8) are fixedly connected to connecting plates (9), the top side of the connecting plate (9) is fixedly connected to a fixing rod (10), The fixed rod (10) is externally rotatably connected to a rotating plate (11), and the two rotating plates (11) are rotatably connected to a supporting rod (12) at their far ends. The bottom sides of the two supporting rods (12) are provided with sliding assemblies. The internal sliding connections of the two sliding assemblies are limited to a position rod (14). The adjacent sides of the two sliding assemblies are fixedly connected to a sliding box (16). The left and right ends of the bottom of the fixed box (4) are provided with strip openings (17), and the inner walls of the two sliding boxes (16) are provided with reset assemblies.

2. The rapid tool changing device for a CNC machine tool according to claim 1, characterized in that: The two reset assemblies each include a splint (18), a square plate (19) is fixedly connected to the opposite side of the two splints (18), a trapezoidal block (20) is fixedly connected to the opposite side of the two square plates (19), a T-shaped opening (21) is provided at the opposite end of the sliding box (16), a spring (22) is fixedly connected to the front and rear sides of the inner wall of the sliding box (16), a plurality of springs (22) are fixedly connected to the adjacent side with a triangular block (23), a plurality of triangular blocks (23) are fixedly connected to the opposite side with a square block (24), a plurality of square blocks (24) are fixedly connected to the opposite side with a sliding block (25), and a sealing assembly is provided on the outside of the fixed box (4).

3. The rapid tool changing device for a CNC machine tool according to claim 2, characterized in that: The sealing assembly comprises a sealing frame (26), the inner wall of the sealing frame (26) is slidably connected to the outer wall of the fixed box (4), the outer wall of the fixed box (4) is fixedly connected to a sealing box (27), the left and right sides of the sealing box (27) are fixedly connected to vertical blocks (28), the inner wall of the vertical block (28) is slidably connected to a button (29), the adjacent sides of the two buttons (29) are fixedly connected to a limiting plate (30), a limiting assembly is provided on the bottom side of the button (29), and a trapezoidal slider (32) is fixedly connected to the bottom side of the limiting assembly.

4. The rapid tool changing device for a CNC machine tool according to claim 1, characterized in that: The top rear end of the support platform (1) is fixedly connected to an oil storage barrel (34), the bottom side of the oil storage barrel (34) is fixedly connected to a lower oil pipe (35), the top of the rear end of the processing box (2) is fixedly connected to a square column (36), the bottom inner wall of the square column (36) is fixedly connected to a nozzle (37), the rear end of the nozzle (37) is fixedly connected to a transfer pipe (38), the rear end inner wall of the processing box (2) is fixedly connected to a protective box (39), the inner wall of the protective box (39) is fixedly connected to a driving assembly, the top outside of the driving assembly is fixedly connected to a disc (42), the disc (42) is provided with lower oil holes (43) on all sides, and the bottom end of the driving assembly is fixedly connected to a main The support platform (1) is provided with a driven bevel gear (44), the inner wall of the support platform (1) is rotatably connected to a driven shaft (45), the rear end of the driven shaft (45) is fixedly connected to a driven bevel gear (46), the outside of the driven shaft (45) is fixedly connected to two rubber plates (47), the top of the support platform (1) is slidably connected to a filter frame (48), the inner wall of the filter frame (48) is fixedly connected to a force plate (49), the bottom front and rear ends of the filter frame (48) are fixedly connected to filter plates (50), the rear end of the support platform (1) is fixedly connected to an oil extraction pipe (51), the top side of the oil extraction pipe (51) is fixedly connected to an oil pump (52), and the output end of the oil pump (52) is fixedly connected to an oil return pipe (53).

5. The rapid tool changing device for a CNC machine tool according to claim 1, characterized in that: The rotating assembly comprises a circular plate (5), the outer portion of the circular plate (5) is rotatably connected to the inner wall of the rear end of the fixed box (4), the front side of the circular plate (5) is fixedly connected to a threaded rod (6), the front side of the threaded rod (6) is fixedly connected to the rear side of the turning handle (7), and the outer portion of the threaded rod (6) is threadedly connected to the inner wall of the block (8).

6. The rapid tool changing device for a CNC machine tool according to claim 1, characterized in that: The two sliding assemblies each include a connecting plate (13), the top sides of the two connecting plates (13) are fixedly connected to the bottom sides of the two support rods (12), the sliding connections of the two connecting plates (13) are external to the limiting rod (14), the left and right sides of the limiting rod (14) are fixedly connected to the left and right sides of the inner wall of the fixed box (4), the bottom side of the connecting plate (13) is fixedly connected to a sliding plate (15), and the adjacent sides of the two sliding plates (15) are fixedly connected to the distant sides of the two sliding boxes (16).

7. The rapid tool changing device for a CNC machine tool according to claim 3, characterized in that: The two limiting assemblies each include a connecting block (31), the bottom sides of the two connecting blocks (31) are respectively slidably connected to the bottom sides of the two buttons (29), the bottom sides of the buttons (29) are fixedly connected to the top side of the trapezoidal slider (32), the two connecting blocks (31) are fixedly connected to the far side of the spring 2 (33), and the far side of the two trapezoidal sliders (32) are respectively fixedly connected to the near side of the two springs 2 (33).

8. The rapid tool changing device for a CNC machine tool according to claim 2, characterized in that: The exteriors of the two clamping plates (18) are respectively slidably connected to the inner walls of the adjacent ends of the two sliding boxes (16), the exteriors of the square plates (19) are slidably connected to the inner walls of the sliding boxes (16), and the distal sides of the two trapezoidal blocks (20) are respectively slidably connected to the adjacent sides of the plurality of triangular blocks (23).

9. The rapid tool changing device for a CNC machine tool according to claim 4, characterized in that: The driving assembly includes a motor (40), the exterior of the motor (40) is fixedly connected to the inner wall of the protective box (39), the driving end of the motor (40) is fixedly connected to a rotating shaft (41), and the top end of the rotating shaft (41) is fixedly connected to the inner wall of the disc (42).

10. The rapid tool changing device for a CNC machine tool according to claim 9, characterized in that: One side of the driving bevel gear (44) is meshed with one side of the driven bevel gear (46), and the exteriors of the two rubber plates (47) are in contact with the bottom sides of the two force-bearing plates (49), respectively.

Citation Information

Patent Citations

  • Milling cutter quick replacement device for numerical control machine tool

    CN213561284U