Automatic tool changing assembly for a ceramic tool of a numerically controlled machine tool

Abstract

The application discloses an automatic tool changing numerical control machine tool ceramic tool assembly and relates to the technical field of numerical control machine tools.The bottom base is fixed with a mounting plate, and the bottom base is rotatably provided with a mounting table.The upper end surface of the mounting table is annularly and uniformly provided with mounting holes, the mounting holes are rotatably provided with supporting bearings, the supporting bearings are provided with tool assemblies, the inner side of the mounting table is annularly and uniformly provided with positioning assemblies, the bottom base is provided with a control assembly on the inner side of each positioning assembly, and the control assembly is used for controlling the clamping state of the tool assemblies on the positioning assemblies.The top of the mounting plate is fixed with a maintenance box, the inner side of the maintenance box is provided with a dismounting control assembly, the dismounting control assembly comprises an angle piece and a dismounting piece, and is used for lubricating and maintaining the tool thread part.The application can realize the centralized storage of ceramic tools, the automatic nut dismounting, the automatic thread lubrication and the automatic detection of the crack of the conical part, so as to solve the defects of the prior art.

Description

Technical Field

[0001] This invention relates to the field of CNC machine tool technology, and in particular to a ceramic tool assembly for an automatic tool changer CNC machine tool. Background Technology

[0002] In high-end manufacturing fields such as aerospace, semiconductors, electronic devices, and precision molds, ceramic cutting tools made of zirconia, silicon nitride, and alumina have become core tools for precision machining of hard and brittle materials due to their excellent properties of high hardness, high wear resistance, high temperature resistance, and low coefficient of friction. The machining accuracy and service life of ceramic cutting tools directly determine the workpiece machining quality and production efficiency, while the clamping stability, threaded connection reliability, and surface integrity of the tapered part are key prerequisites for ensuring their performance. Currently, ceramic cutting tools are widely used in automatic tool changer CNC machine tools. Their tool holders mostly adopt a spring collet structure, which uses a locking nut to engage with the external thread of the tool holder, compressing the spring collet to radially contract and thus fixing the tool. This structure has the advantages of uniform clamping force, small radial runout, and convenient tool changing, and is suitable for the high hardness and brittleness of ceramic cutting tools, effectively avoiding problems such as tool chipping and vibration caused by improper clamping. However, in the long-term process of large-scale processing, the maintenance and inspection of ceramic cutting tool holders still rely on manual operation, which has many technical defects such as low efficiency, uneven maintenance quality, and insufficient inspection accuracy. This seriously restricts the service life and processing stability of ceramic cutting tools and cannot meet the needs of automated and large-scale production. First, the maintenance of the threaded connection of the tool holder is cumbersome and manual, and the maintenance effect is difficult to guarantee. The locking nut of the spring collet tool holder is exposed to the external thread of the tool holder for a long time. It is easy to be contaminated with cutting fluid, ceramic powder, iron filings and other impurities, which leads to thread corrosion and seizing, thus affecting the smoothness of nut disassembly and assembly and the uniformity of clamping force. At the same time, the threaded part needs to be lubricated regularly for rust prevention and lubrication. In the current technology, the nut is disassembled, the thread is cleaned, grease is sprayed and then retightened manually. This is not only inefficient, but also has high manual maintenance costs, which is difficult to meet the centralized maintenance needs of large batches of ceramic cutting tools. Second, there is a lack of efficient and accurate automated means for crack detection of the taper part of the ceramic cutting tool holder. As a core component that mates with the machine tool spindle, the surface integrity of the taper of the tool holder directly affects positioning accuracy and clamping stability. Defects such as cracks, chipping, and scratches in the taper can increase the clearance between the spindle and the tool holder, causing vibration, which in turn can lead to chipping of the ceramic tool, deviations in workpiece machining accuracy, and even machine tool malfunction. Therefore, this invention proposes an integrated tool assembly that enables centralized storage of ceramic tools, automatic nut assembly and disassembly, automatic thread lubrication, and automatic detection of taper cracks, overcoming the shortcomings of existing technologies. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention proposes an integrated tool assembly capable of centralized storage of ceramic cutting tools, automatic nut assembly and disassembly, automatic thread lubrication, and automatic detection of tapered cracks, thus overcoming the shortcomings of existing technologies.

[0004] The technical solution used in this invention is as follows: an automatic tool changer CNC machine tool ceramic tool assembly, including a base, a mounting plate fixed on the base, and a mounting platform rotatably mounted on the base. The upper surface of the mounting platform has uniformly spaced mounting holes in a ring shape. A support bearing is rotatably mounted in the mounting holes, and a tool assembly can be mounted on the support bearing. The tool assembly has a threaded portion, and a tool chuck is threadedly fitted onto the threaded portion. The inner side of the mounting platform has a ring-shaped arrangement of positioning components, the same number as the tool assembly, used for positioning and clamping the ends of the tool assembly. A control component is located on the base and inside each positioning component, used to control the clamping state of the tool assembly by each positioning component. A maintenance box is fixed to the top of the mounting plate, and a disassembly and assembly control component is located inside the maintenance box. The disassembly and assembly control component includes an angle component and a disassembly and assembly component. The angle component is used to control the angle adjustment of the tool assembly, and the disassembly and assembly component is used to disassemble and assemble the threaded portion for lubrication.

[0005] As a preferred embodiment, an azimuth motor is fixed to the bottom of the base, an azimuth gear is fixed to the output shaft of the azimuth motor, and a gear ring is fixed to the inner side of the mounting platform, with the azimuth gear meshing with the gear ring on the inner side of the mounting platform.

[0006] As a preferred embodiment, a position visual detector is provided on the top of the maintenance box and above the tool assembly for visually detecting the angle and orientation of the tool assembly.

[0007] As a preferred embodiment, the tool assembly is provided with a positioning part, the positioning part is provided with a positioning groove, and one end of the tool assembly is a mounting cone; the mounting cone passes through the support bearing and extends to the inner side of the mounting platform, and the support bearing supports and mounts the positioning part; a surface defect visual detector is provided at the bottom of the mounting plate for visually detecting surface defects of the mounting cone; the positioning assembly positions and clamps the end of the mounting cone.

[0008] As a preferred embodiment, the positioning assembly includes two clamping parts that rotate inside the mounting platform. The two clamping parts separate and close synchronously to clamp and control the end of the mounting cone. A rotating shaft is fixed to one end of the two clamping parts facing the inside of the mounting platform. A transmission gear is fixed to one end of the rotating shaft, and a torsion spring for providing reset torque is sleeved on the rotating shaft.

[0009] As a preferred embodiment, the positioning assembly further includes a control slide rod slidably mounted on the base. A rack is fixed to the end of the control slide rod facing the inner side of the mounting platform. The rack is located between two transmission gears and meshes with the transmission gears. A spring is connected between the control slide rod and the inner wall of the mounting platform to provide a reset force. A push rod is fixed to the end of the control slide rod facing away from the inner wall of the mounting platform. The push rod is pushed and controlled by the control assembly.

[0010] As a preferred embodiment, the control assembly includes a control motor fixed to the base, a control base plate fixed to the output shaft of the control motor, a control top plate fixedly connected to the control base plate via a connecting shaft, a slide table slidably fitted on the connecting shaft, and a second spring sleeved on the connecting shaft to provide a reset force; a pressing rod fixed to the outside of the slide table, and a push wheel rotatably mounted thereon, the pressing rod having a pushing inclined surface for contacting the pushing rod; a push ring fixed on the base and below the push wheel, the push ring having a flat area and an inclined area, the push wheel moving on the inclined area to push the slide table to move up and down.

[0011] As a preferred embodiment, the disassembly and assembly control assembly includes a transposition motor fixed to the top of the maintenance box, a rotating frame rotatably mounted inside the maintenance box, the rotating frame including a transposition top plate and a transposition bottom plate rotatably mounted on the maintenance box, a transposition screw rotatably mounted between the transposition top plate and the transposition bottom plate, and a guide rod fixedly mounted thereon. The output shaft of the transposition motor is fixedly connected to the transposition top plate, and a screw motor is fixed on the transposition top plate for driving the transposition screw. A transposition platform is slidably fitted on the guide rod and the transposition screw, and the transposition platform and the transposition screw form a helical pair. Angle components and disassembly / assembly components are arranged on the transposition platform.

[0012] As a preferred embodiment, the angle component includes a radial electric cylinder fixed to the transposition platform, a deflection motor fixed on the telescopic rod of the radial electric cylinder, a deflection ring rotatably mounted on the deflection ring, an angle gear ring rotatably mounted on the deflection ring, an angle retaining ring fixed on the end face of the angle gear ring, an angle motor fixed on the deflection ring, an angle gear fixed on the output shaft of the angle motor, and the angle gear meshing with the angle gear ring.

[0013] As a preferred embodiment, the disassembly / assembly component includes a second radial electric cylinder fixed to the transposition platform, a second deflection motor fixed to the telescopic rod of the second radial electric cylinder, and a second deflection ring rotatably mounted thereon. A retaining ring is fixed to the second deflection ring, and an axial electric cylinder is fixed to the outer side of the second deflection ring. An axial mounting ring is fixed to the telescopic rod of the axial electric cylinder, and a disassembly / assembly sleeve is rotatably mounted on the axial mounting ring, located above the retaining ring. A disassembly / assembly motor is fixed to the axial mounting ring, and a disassembly / assembly gear is fixed to the output shaft of the disassembly / assembly motor, meshing with the disassembly / assembly sleeve. A spray control electric cylinder and a transmission box are also fixed to the second deflection ring. A spray nozzle is provided on the telescopic rod of the spray control electric cylinder, and the spray nozzle is connected to the transmission box via a transmission pipe.

[0014] The beneficial effects of this invention compared with the prior art are: (1) In this invention, when performing periodic maintenance and inspection of the tool assembly, the surface defect visual detector can detect surface defects such as cracks on the mounting cone of each tool assembly, and can provide timely signal feedback, which is convenient for operators to perform timely maintenance and replacement; (2) In this invention, when each tool assembly is moved to the bottom of the position visual detector, the position visual detector visually detects the angle position information of the tool assembly and feeds it back to the system, and the system can control the angle component to adjust the angle orientation of the tool; (3) In this invention, the threaded part is exposed by the disassembly and assembly component, and the grease is transmitted to the spray nozzle through the transmission box. The spray nozzle sprays the grease onto the threaded part. The spray control electric cylinder can control the height of the spray nozzle to spray in different areas of the threaded part to achieve the maintenance purpose. Finally, the disassembly and assembly sleeve is rotated in the opposite direction to tighten the disassembly and assembly sleeve again. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 This is a partial schematic diagram of the overall structure of the present invention.

[0017] Figure 3 This is a schematic diagram of the internal structure of the mounting platform of the present invention.

[0018] Figure 4 This is a schematic diagram of the tool assembly structure of the present invention.

[0019] Figure 5 This is a schematic diagram of the positioning component and tool assembly structure of the present invention.

[0020] Figure 6 This is a schematic diagram of the control component structure of the present invention.

[0021] Figure 7 This is a schematic diagram of the slide structure of the present invention.

[0022] Figure 8 This is a schematic diagram of the disassembly and assembly control component structure of the present invention.

[0023] Figure 9 This is a schematic diagram of the disassembly and assembly structure of the present invention.

[0024] Figure 10 This is a partial structural diagram of the disassembly and assembly parts of the present invention.

[0025] Reference numerals: 1-Mounting platform; 2-Maintenance box; 201-Positioning motor; 3-Base; 301-Mounting plate; 4-Position vision detector; 5-Orientation motor; 6-Orientation gear; 7-Surface defect vision detector; 8-Tool assembly; 801-Threaded part; 802-Mounting cone part; 803-Tool chuck; 804-Positioning part; 9-Support bearing; 10-Control slide rod; 11-Push rod; 12-Spring one; 13-Rack; 14-Torsion spring; 15-Transmission gear; 16-Clamping part; 17-Control motor; 18-Push ring; 19-Control base plate; 20-Connecting shaft; 21-Control top plate; 22-Spring two; 23- 24-Push roller; 25-Extrusion rod; 26-Shifting top plate; 27-Screw motor; 28-Shifting screw; 29-Guide rod; 30-Shifting platform; 31-Shifting base plate; 32-Radial electric cylinder one; 33-Radial electric cylinder two; 34-Deflection motor two; 35-Deflection motor one; 36-Deflection ring one; 37-Angle motor; 38-Angle gear; 39-Angle gear ring; 40-Angle retaining ring; 41-Deflection ring two; 42-Fixing retaining ring; 43-Axial electric cylinder; 44-Axial mounting ring; 45-Disassembly and assembly sleeve; 46-Disassembly and assembly motor; 47-Disassembly and assembly gear; 48-Spray control electric cylinder; 49-Transfer box; 50-Spray nozzle. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0027] like Figures 1 to 10 As shown, an automatic tool changer CNC machine tool ceramic tool assembly includes a base 3, a mounting plate 301 fixed on the base 3, and a mounting platform 1 rotatably mounted on the base 3. The upper surface of the mounting platform 1 has uniformly spaced mounting holes in a ring shape. A support bearing 9 is rotatably mounted in the mounting holes, and a tool assembly 8 can be mounted on the support bearing 9. The tool assembly 8 has a threaded portion 801, and a tool chuck 803 is threadedly fitted onto the threaded portion 801. The inner side of the mounting platform 1 has a ring-shaped arrangement of positioning components, the same number as the tool assembly 8, used for positioning and clamping the ends of the tool assembly 8. A control component is located on the base 3 and inside each positioning component, used to control the clamping state of each positioning component on the tool assembly 8. A maintenance box 2 is fixed to the top of the mounting plate 301, and a disassembly and assembly control component is located inside the maintenance box 2. The disassembly and assembly control component includes an angle component and a disassembly and assembly component. The angle component is used to control the angle adjustment of the tool assembly 8, and the disassembly and assembly component is used to disassemble and assemble the threaded portion 801 for lubrication.

[0028] A positioning motor 5 is fixed to the bottom of the base 3, and a positioning gear 6 is fixed to the output shaft of the positioning motor 5. A gear ring is fixed to the inner side of the mounting platform 1, and the positioning gear 6 meshes with the gear ring on the inner side of the mounting platform 1. A position vision detector 4 is provided on the top of the maintenance box 2 and above the tool assembly 8 for visually detecting the angle and orientation of the tool assembly 8. A positioning part 804 is provided on the tool assembly 8, and a positioning groove is provided on the positioning part 804. One end of the tool assembly 8 is a mounting cone 802. The mounting cone 802 passes through the support bearing 9 and extends to the inner side of the mounting platform 1. The support bearing 9 supports and installs the positioning part 804. A surface defect vision detector 7 is provided at the bottom of the mounting plate 301 for visually detecting surface defects of the mounting cone 802. The positioning assembly positions and clamps the end of the mounting cone 802.

[0029] The positioning assembly includes two clamping parts 16 rotating inside the mounting platform 1. The two clamping parts 16 simultaneously separate and close to clamp and control the end of the mounting cone 802. A rotating shaft is fixed to one end of the two clamping parts 16 facing the inside of the mounting platform 1. A transmission gear 15 is fixed to one end of the rotating shaft, and a torsion spring 14 for providing reset torque is sleeved on the rotating shaft. The positioning assembly also includes a control slide rod 10 slidably mounted on the base 3. A rack 13 is fixed to one end of the control slide rod 10 facing the inside of the mounting platform 1. The rack 13 is located between the two transmission gears 15 and meshes with the transmission gears 15. A spring 12 for providing reset elasticity is connected between the control slide rod 10 and the inner wall of the mounting platform 1. A push rod 11 is fixed to one end of the control slide rod 10 facing away from the inner wall of the mounting platform 1. The push rod 11 is pushed and controlled by the control assembly.

[0030] The control assembly includes a control motor 17 fixed on the base 3, a control base plate 19 fixed on the output shaft of the control motor 17, a control top plate 21 fixedly connected to the control base plate 19 via a connecting shaft 20, a slide table 23 slidably fitted on the connecting shaft 20, and a spring 22 for providing a reset force sleeved on the connecting shaft 20; a pressing rod 25 fixed on the outside of the slide table 23, and a push wheel 24 rotatably mounted thereon, the pressing rod 25 having a pushing inclined surface for contacting the pushing push rod 11; a push ring 18 fixed on the base 3 and below the push wheel 24, the push ring 18 having a flat area and an inclined area, the push wheel 24 moving on the inclined area to push the slide table 23 to move up and down.

[0031] The disassembly and assembly control assembly includes a shift motor 201 fixed to the top of the maintenance box 2. A rotating frame is rotatably mounted inside the maintenance box 2. The rotating frame includes a shift top plate 26 and a shift bottom plate 31 rotatably mounted on the maintenance box 2. A shift lead screw 28 is rotatably mounted between the shift top plate 26 and the shift bottom plate 31. A guide rod 29 is fixedly mounted. The output shaft of the shift motor 201 is fixedly connected to the shift top plate 26. A lead screw motor 27 is fixed on the shift top plate 26 to drive the shift lead screw 28. A shift platform 30 is slidably fitted on the guide rod 29 and the shift lead screw 28. The shift platform 30 and the shift lead screw 28 form a helical pair. Angle components and disassembly / assembly components are set on the shift platform 30.

[0032] The angle assembly includes a radial electric cylinder 32 fixed to the transposition table 30, a deflection motor 35 fixed to the telescopic rod of the radial electric cylinder 32, and a deflection ring 36 rotatably mounted thereon. An angle gear ring 39 is rotatably mounted on the deflection ring 36, an angle retainer 40 is fixed to the end face of the angle gear ring 39, an angle motor 37 is fixed to the deflection ring 36, and an angle gear 38 is fixed to the output shaft of the angle motor 37, meshing with the angle gear ring 39. The disassembly assembly includes a radial electric cylinder 33 fixed to the transposition table 30, a deflection motor 34 fixed to the telescopic rod of the radial electric cylinder 33, and a deflection ring 41 rotatably mounted thereon, with a retainer 40 fixed to the deflection ring 41. Ring 42, and an axial electric cylinder 43 is fixed on the outer side of the deflection ring 41. An axial mounting ring 44 is fixed on the telescopic rod of the axial electric cylinder 43. A disassembly and assembly sleeve 45 is rotatably mounted on the axial mounting ring 44. The disassembly and assembly sleeve 45 is located above the fixed retaining ring 42 and can engage with the tool retaining sleeve 803. A disassembly and assembly motor 46 is fixed on the axial mounting ring 44. A disassembly and assembly gear 47 is fixed on the output shaft of the disassembly and assembly motor 46 and meshes with the disassembly and assembly sleeve 45. A spray control electric cylinder 48 and a transmission box 49 are also fixed on the deflection ring 41. A spray nozzle 50 is provided on the telescopic rod of the spray control electric cylinder 48. The spray nozzle 50 is connected to the transmission box 49 through a transmission pipe.

[0033] The working principle is as follows: Support bearings 9 are evenly arranged in a ring on the mounting platform 1. The rated static load of the support bearings 9 is 2.3kN, which is adapted to the support and rotation requirements of the tool assembly positioning part 804. During automatic tool changing, the robotic arm clamps the positioning part 804 area on the tool assembly 8, which can automatically change the tool. The robotic arm is a mature existing technology and will not be described in detail here. The tool assembly 8 is installed on the support bearings 9. The mounting cone 802 on the tool assembly 8 passes through the support bearings 9 and extends into the interior of the mounting platform 1. The end of the mounting cone 802 is clamped and limited by two clamping parts 16. The clamping action of the clamping parts 16 can be controlled by the control motor 17 to drive the base plate 19 to rotate, so that the slide 23 rotates, the push wheel 24 moves on the inclined area on the push ring 18, and then the slide 23 rises and moves, so that the extrusion rod 25 moves. When the slide table 23 reaches the height corresponding to the push rod 11, the push wheel 24 moves in the plane area on the push ring 18, and the pressing rod 25 rotates at the height of the push rod 11. The pushing inclined surface on the pressing rod 25 contacts and pushes the push rod 11, so that the control slide 10 moves telescopically. Under the transmission action of the rack 13 and the transmission gear 15, the two clamping parts 16 separate from each other. When the end of the mounting cone 802 is located between the two clamping parts 16, the control slide 10 moves under the return force of the spring 12, so that the two clamping parts 16 move and close, so as to limit and clamp the end of the mounting cone 802, so that the tool assembly 8 is stably installed on the mounting table 1. The azimuth motor 5 drives the azimuth gear 6 to rotate the mounting table 1, thereby realizing the repositioning, so as to adjust the tool assembly 8 in each position.

[0034] During periodic maintenance and inspection of the tool assemblies 8, surface defect visual detectors 7 can detect surface defects, such as cracks, on the mounting cones 802 of each tool assembly 8. The surface defect visual detector 7 is a 5-megapixel industrial-grade visual detector equipped with area scanning and crack recognition algorithms, achieving a detection accuracy of ±0.005mm. It can identify micro-cracks ≥0.02mm and provides timely signal feedback, facilitating timely maintenance and replacement by operators. Specifically, when each tool assembly 8 is moved below the position visual detector 4, the position visual detector 4 visually detects the angular position information of the tool assembly 8 and feeds it back to the system. The position visual detector 4 is a 2-megapixel industrial-grade detector with a frame rate of 30fps, a detection accuracy of ±0.01mm, and equipped with a visual positioning algorithm. The lead screw 28 is driven to rotate by the lead screw motor 27. The movement causes the shifting stage 30 to adjust its height. The deflection motor 35 controls the deflection ring 36 to rotate, changing it from a vertical to a horizontal state. The radial electric cylinder 32 controls the radial position of the deflection ring 36. Then, the height of the shifting stage 30 is controlled, causing the deflection ring 36 to descend. The tool body passes through the inner side of the deflection ring 36. The position of the positioning groove on the positioning part 804 is determined by analyzing the angular position information of the tool assembly 8. The angle motor 37 drives the angle gear ring 39 to rotate, causing the angle retaining ring 40 to rotate to the same position as the positioning groove. Finally, the angle retaining ring 40 engages with the positioning groove. Then, the tool assembly 8 can be controlled to rotate as a whole. At this time, the two clamping parts 16 are controlled to release the clamping state on the end of the mounting cone 802. By continuously adjusting the angle of the tool assembly 8, the surface defect visual detector 7 can perform full-area defect detection on the upper surface of the mounting cone 802.

[0035] After defect detection is completed, the shifting motor 201 drives the shifting top plate 26 to rotate, changing the orientation of the angle component and the disassembly / assembly component, so that the disassembly / assembly component is located in the position of the tool assembly 8 to be maintained. The deflection motor 34 controls the deflection ring 41 to deflect from a vertical position to a horizontal position, and the radial electric cylinder 33 controls the radial position of the deflection ring 41, so that the fixing ring 42 is above the tool assembly 8 to be maintained. Then, the shifting table 30 is controlled to descend, so that the tool body passes through the inner side of the deflection ring 41. The angle orientation of the tool assembly 8 is adjusted in advance by the angle component, so that the positioning groove on the tool assembly 8 corresponds to the position of the fixing ring 42. The fixing ring 42 engages with the positioning groove to achieve circumferential fixation of the tool assembly 8. According to the angle position information of the tool assembly 8, the disassembly / assembly motor 46 drives the disassembly / assembly sleeve 45 to rotate, so that the angle between the disassembly / assembly sleeve 45 and the tool chuck 803 is... The tool chuck 803 is equipped with a slot, and the inner side of the disassembly sleeve 45 has a locking block that mates with the slot. The disassembly sleeve 45 mates with the tool chuck 803, and the locking block mates with the slot, so as to rotate the tool chuck 803. The axial electric cylinder 43 controls the axial mounting ring 44 to move up and down with an accuracy of ±0.01mm to adapt to the axial movement of the tool chuck 803, so that the threaded part 801 is exposed. The 0.2MPa constant pressure output pump built into the transmission box 49 delivers grease to the spray nozzle 50 through the polytetrafluoroethylene transmission pipe. The spray nozzle 50 atomizes the grease and sprays it onto the threaded part 801. The spray control electric cylinder 48 controls the height of the spray nozzle 50 within the stroke range with an accuracy of ±0.02mm to spray evenly in different areas of the threaded part 801 for maintenance purposes. Finally, the disassembly sleeve 45 is rotated in the opposite direction to tighten the tool chuck 803 again with the set torque.

[0036] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A ceramic tool assembly for an automatic tool changer CNC machine tool, comprising a base, a mounting plate fixed on the base, and a mounting table rotatably mounted on the base, characterized in that: The upper surface of the mounting plate has uniformly spaced mounting holes in a ring. A support bearing is rotatably mounted in the mounting holes, and a tool assembly can be mounted on the support bearing. The tool assembly has a threaded part, and a tool chuck is threadedly mounted on the threaded part. The inner side of the mounting plate has a ring of positioning components, the same number as the tool assemblies. A control component is located on the base and inside each positioning component. A maintenance box is fixed to the top of the mounting plate. The maintenance box has a disassembly and assembly control component inside. The disassembly and assembly control component includes a sliding shifting platform, and the shifting platform has angle components and disassembly / assembly components. The angle component includes a radial electric cylinder fixed on the shifting platform, a deflection motor fixed on the telescopic rod of the radial electric cylinder, and a deflection ring rotatably mounted on the telescopic rod of the radial electric cylinder. The deflection ring is driven by the deflection motor. An angle gear ring is rotatably mounted on the deflection ring. An angle retaining ring is fixed on the end face of the angle gear ring. An angle motor is fixed on the deflection ring. An angle gear is fixed on the output shaft of the angle motor. The angle gear meshes with the angle gear ring. The assembly / disassembly component includes a radial electric cylinder II fixed to the transposition platform. A deflection motor II is fixed to the telescopic rod of the radial electric cylinder II, and a deflection ring II is rotatably mounted on the telescopic rod of the radial electric cylinder II. The deflection ring II is driven by the deflection motor II. A retaining ring is fixed to the deflection ring II, and an axial electric cylinder is fixed to the outer side of the deflection ring II. An axial mounting ring is fixed to the telescopic rod of the axial electric cylinder, and a disassembly / assembly sleeve is rotatably mounted on the axial mounting ring. The disassembly / assembly sleeve is located above the retaining ring. A disassembly / assembly motor is fixed to the axial mounting ring, and a disassembly / assembly gear is fixed to the output shaft of the disassembly / assembly motor. The disassembly / assembly gear meshes with the disassembly / assembly sleeve. A spray control electric cylinder and a transmission box are also fixed to the deflection ring II. A spray nozzle is provided on the telescopic rod of the spray control electric cylinder, and the spray nozzle is connected to the transmission box through a transmission pipe.

2. The ceramic tool assembly for an automatic tool changer CNC machine tool according to claim 1, characterized in that: An azimuth motor is fixed to the bottom of the base, an azimuth gear is fixed to the output shaft of the azimuth motor, and a gear ring is fixed to the inner side of the mounting platform. The azimuth gear meshes with the gear ring on the inner side of the mounting platform.

3. The ceramic tool assembly for an automatic tool changer CNC machine tool according to claim 1, characterized in that: A position vision detector is provided on the top of the maintenance box and above the tool assembly for visually detecting the angle and orientation of the tool assembly.

4. The ceramic tool assembly for an automatic tool changer CNC machine tool according to claim 1, characterized in that: The tool assembly is provided with a positioning part, which has a positioning groove. One end of the tool assembly is a mounting cone. The mounting cone passes through a support bearing and extends to the inside of the mounting platform. The support bearing supports and mounts the positioning part. A surface defect visual detector is provided at the bottom of the mounting plate for visually detecting surface defects of the mounting cone. The positioning assembly positions and clamps the end of the mounting cone.

5. The ceramic tool assembly for an automatic tool changer CNC machine tool according to claim 1, characterized in that: The positioning assembly includes two clamping parts that rotate inside the mounting platform. The two clamping parts separate and close synchronously to clamp and control the end of the mounting cone. A rotating shaft is fixed to one end of the two clamping parts facing the inside of the mounting platform. A transmission gear is fixed to one end of the rotating shaft, and a torsion spring for providing reset torque is sleeved on the rotating shaft.

6. The ceramic tool assembly for an automatic tool changer CNC machine tool according to claim 5, characterized in that: The positioning assembly also includes a control slide rod slidably mounted on the base. A rack is fixed to the end of the control slide rod facing the inner side of the mounting platform. The rack is located between two transmission gears and meshes with the transmission gears. A spring is connected between the control slide rod and the inner wall of the mounting platform to provide a reset force. A push rod is fixed to the end of the control slide rod facing away from the inner wall of the mounting platform. The push rod is pushed and controlled by the control assembly.

7. The ceramic tool assembly for an automatic tool changer CNC machine tool according to claim 6, characterized in that: The control assembly includes a control motor fixed to the base, a control base plate fixed to the output shaft of the control motor, a control top plate fixedly connected to the control base plate via a connecting shaft, a slide table slidably fitted on the connecting shaft, and a spring II sleeved on the connecting shaft to provide a reset force; a pressing rod fixed to the outside of the slide table, and a push wheel rotatably mounted thereon, the pressing rod having a pushing inclined surface for contacting the pushing rod; a push ring fixed on the base and below the push wheel, the push ring having a flat area and an inclined area, the push wheel moving on the inclined area to push the slide table to move up and down.

8. The ceramic tool assembly for an automatic tool changer CNC machine tool according to claim 1, characterized in that: The disassembly and assembly control assembly includes a transposition motor fixed to the top of the maintenance box, a rotating frame rotatably mounted inside the maintenance box, the rotating frame including a transposition top plate and a transposition bottom plate rotatably mounted on the maintenance box, a transposition screw rotatably mounted between the transposition top plate and the transposition bottom plate, and a guide rod fixedly mounted thereon. The output shaft of the transposition motor is fixedly connected to the transposition top plate, and a screw motor is fixed on the transposition top plate for driving the transposition screw. A transposition platform is slidably fitted on the guide rod and the transposition screw, and the transposition platform and the transposition screw form a helical pair.

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