Quick-switchable compound tool holder structure for turning tool

Abstract

This invention discloses a composite tool holder structure for rapid tool switching, comprising a composite base with a housing fixedly mounted on its upper end. The housing contains a rolling cleaning mechanism. This invention utilizes a rolling cleaning mechanism composed of a follower wheel, a cleaning roller, a drive gear, a driven gear, a sprocket, and a chain. The follower wheel is positioned along the extension and retraction path of the tool holder or tool body. The friction between the linear motion of the tool and the damping sleeve drives the follower wheel to rotate, which in turn drives the cleaning roller to rotate synchronously. This achieves a purely mechanical linkage between the tool changing and cleaning actions. This structure eliminates the need for additional motors or cylinders, simplifying control logic, reducing manufacturing costs and failure rates. Simultaneously, it ensures that the tool surface is continuously wiped by the felt sleeve during each tool change, effectively removing chips and oil, thereby guaranteeing the repeatability and machining stability of the tool tip.

Description

Technical Field

[0001] This invention belongs to the field of lathe tool holder technology, specifically a composite tool holder structure that can quickly switch lathe tools. Background Technology

[0002] In machining equipment such as CNC lathes and mill-turn machining centers, the quick-change tool holder is a key functional component for achieving continuous multi-operation machining. Traditional tool holders typically include a tool head, a tool post, and a locking mechanism. They enable rapid switching between different tools by rotating the tool head or translating the tool post, and are widely used for efficient machining of batches of parts.

[0003] However, existing composite tool holders still have the following technical problems in practical use: They lack an effective tool cleaning mechanism during tool changing. After completing a cutting task, the tool shank and tool tip often have chips, oil, and coolant residue adhering to their surfaces. If directly recycled into the tool magazine, these impurities will contaminate the internal environment of the tool magazine and affect the tool's repeatability during the next tool change, leading to tool tip misalignment and unstable machining dimensions. Traditional methods rely on operators manually wiping or using air guns to clean, which is not only inefficient but also difficult to guarantee consistent cleaning, especially unsuitable for the unmanned and continuous operation requirements of automated production lines. Therefore, a composite tool holder structure capable of quickly switching cutting tools is needed. Summary of the Invention

[0004] The purpose of this invention is to provide a composite tool holder structure that can quickly switch cutting tools in order to solve the above-mentioned problems, thus solving the problems mentioned in the background art.

[0005] To address the aforementioned problems, this invention provides a composite tool holder structure that allows for rapid tool switching:

[0006] A composite tool holder structure that allows for quick tool switching includes a composite base, a chamber fixedly mounted on the upper end of the composite base, a rolling cleaning mechanism inside the chamber, the rolling cleaning mechanism including a follower wheel and a cleaning roller, an auxiliary flushing component on the chamber, a protective scratch component on the rolling cleaning mechanism, a follower wheel mounted inside the chamber via bearings, and a cleaning roller mounted inside the chamber via bearings.

[0007] The composite base is provided with a tool changing mechanism, and the tool changing mechanism is provided with a positioning drive component. The tool changing mechanism includes a tool changing disc and a tool magazine cover. The tool changing disc is mounted on the upper end of the composite base via bearings.

[0008] Preferably, a damping sleeve is fixedly sleeved on the outer side of the follower wheel, and a felt sleeve is fixedly sleeved on the outer side of the cleaning roller. The outer side of the felt sleeve has multiple cleaning grooves arranged in a ring. The follower wheel is located below the tool holder. After the tool holder extends out from the inside of the tool magazine, it contacts the damping sleeve on the outer side of the follower wheel and drives the follower wheel to rotate through the friction between the tool holder and the damping sleeve. The retraction process is the same. At the same time, the follower wheel drives the cleaning roller to rotate through the transmission mechanism. During the rotation, the cleaning roller can clean the cutting tool body through the felt sleeve.

[0009] Preferably, a drive gear is fixedly installed on the outer side of the connecting shaft of the follower wheel, and a driven gear meshes with the upper end of the drive gear. A fixed shaft is installed inside the driven gear through a bearing, and the fixed shaft is fixedly connected to the chamber body. A small sprocket is fixedly installed on the outer side of the driven gear, and a large sprocket is fixedly installed on the outer side of the connecting shaft of the cleaning roller. A chain meshes with the outer sides of the large sprocket and the small sprocket. A drive cover is fixedly installed on the outer side of the chamber body. The drive cover can protect the gear and sprocket area and prevent debris from affecting the transmission.

[0010] Preferably, the auxiliary rinsing assembly includes a miniature plunger pump. The miniature plunger pump is fixedly installed at the upper end of the chamber. A coolant pipe is fixedly installed inside the output end of the miniature plunger pump, and the coolant pipe passes through the chamber. A nozzle is fixedly installed at one end of the coolant pipe inside the chamber. The nozzle of the nozzle points to the tangential direction of the cleaning roller. A support frame is fixedly installed on the outside of the coolant pipe and is fixedly connected to the inner top of the chamber. A pagoda head is fixedly installed at the upper end of the inlet of the miniature plunger pump. The miniature plunger pump can spray coolant onto the contact surface between the upper surface of the cutting tool body and the felt sleeve through the coolant pipe and the nozzle, thereby rinsing and cooling the cutting tool body at the same time.

[0011] Preferably, the anti-scratching assembly includes an I-beam hinge frame. Two pairs of symmetrically distributed I-beam hinge frames are fixedly installed on the outer side of the outlet of the chamber. Each pair of I-beam hinge frames is hinged to a protective door on its outer side. The protective door contacts the outer side of the outlet of the chamber. A brush plate is fixedly installed on the inner side of the protective door. A pressure torsion spring is provided on the outer side of the central rod of the I-beam hinge frame. One end of the pressure torsion spring is fixedly connected to the protective door, and the other end of the pressure torsion spring is fixedly connected to the chamber. The brush plate on the inner side of the protective door scrapes and cleans the side of the cutting tool body during the tool body recovery process to prevent debris from entering the interior of the tool chamber cover.

[0012] Preferably, a tool magazine cover is fixedly installed on the upper end of the tool changer, and multiple double-rod guide frames arranged in a ring are fixedly installed on the upper end of the tool changer. A reset plate is slidably connected to the outer side of the two rods of each double-rod guide frame. A tool holder is fixedly installed on the upper end of the reset plate, and a turning tool body is bolted to the upper end of the tool holder. The tool holder is slidably connected to the opening of the tool magazine cover. The double-rod guide frames can guide the movement of the tool holder and the turning tool body when they move.

[0013] Preferably, long springs are provided on the outer sides of both rods of the double-rod guide frame. The double-rod guide frame is fixedly connected to the inner wall of the tool magazine cover. One end of the long spring is fixedly connected to the reset plate, and the other end of the long spring is fixedly connected to the inner wall of the tool magazine cover. The long springs can push the reset plate with their elastic force to retract the tool holder into the tool magazine cover.

[0014] Preferably, a U-shaped frame is fixedly installed at the upper middle part of the composite base, an electric telescopic rod is fixedly installed inside the U-shaped frame, a pressure sensing disc is fixedly installed at the telescopic end of the electric telescopic rod, the pressure sensing disc is in contact with the tool holder, and the pressure sensing disc is electrically connected to the micro plunger pump. When the pressure of the pressure sensing disc changes, the micro plunger pump starts.

[0015] Preferably, the positioning drive assembly includes a drive positioning wheel. The drive positioning wheel is fixedly installed on the outer side of the upper connecting shaft of the tool magazine cover. A drive turntable is installed inside the magazine body through a bearing. A crescent-shaped positioning disc is fixedly installed on the upper end of the drive turntable. A drive shaft is fixedly installed on the upper end of the drive turntable. Multiple arc-shaped positioning grooves are formed on the outer side of the drive positioning wheel. The arc surface of the crescent-shaped positioning disc is in rotatable contact with the arc-shaped positioning groove. After the drive shaft disengages from the drive groove, the crescent-shaped positioning disc can be rotated into the arc-shaped positioning groove to lock the drive positioning wheel, thereby realizing the fixed-angle rotation and locking of the drive positioning wheel.

[0016] Preferably, a wheel is fixedly installed on the upper end of the connecting shaft of the drive turntable, and a crank handle is fixedly installed on the upper end of the wheel. The drive positioning wheel has multiple drive grooves arranged in a ring inside. The diameter of the drive groove is in contact with the diameter of the drive shaft. The opening of the drive groove has a beveled chamfer. During the rotation of the drive turntable, the drive shaft can slide into the drive groove. During the sliding and sliding out process, the drive shaft can drive the drive positioning wheel to rotate.

[0017] The beneficial effects of this invention are:

[0018] 1. This invention features a rolling cleaning mechanism consisting of a follower wheel, a cleaning roller, a drive gear, a driven gear, a sprocket, and a chain. The follower wheel is positioned on the extension and retraction path of the tool holder or cutting tool body. The friction between the linear motion of the tool and the damping sleeve drives the follower wheel to rotate, which in turn drives the cleaning roller to rotate synchronously. This achieves a purely mechanical linkage between the tool changing action and the tool cleaning action. This structure eliminates the need for additional motors or cylinders, simplifies the control logic, reduces manufacturing costs and failure rates, and ensures that the tool surface is wiped by the felt sleeve during each tool changing process, effectively removing chips and oil stains, thereby guaranteeing the repeatability and stability of the tool tip positioning.

[0019] 2. This invention incorporates an auxiliary rinsing assembly including a miniature plunger pump, coolant pipes, and nozzles. During tool changing, the plunger pump is automatically started and stopped using an electrical signal from a pressure sensor plate. This directs the nozzles to spray coolant onto the tangential contact area between the cleaning roller and the cutting tool body, achieving simultaneous rinsing and cooling of the wiping area and the tool surface. This design effectively removes residual chips scraped off by the felt sleeve, preventing secondary contamination. Furthermore, it reduces the high temperatures generated by continuous cutting, preventing chip adhesion. This design is particularly suitable for rapid tool changes after heavy cutting, significantly improving cleaning effectiveness and tool life.

[0020] 3. This invention achieves automatic closure of the tool magazine outlet and secondary scraping of the tool side by setting up a protective scraping assembly consisting of an I-shaped hinge frame, a pressure torsion spring, a protective door, and an inner brush plate, and installing a purely mechanical positioning drive assembly consisting of a drive positioning wheel, a crescent-shaped positioning plate, a drive shaft, and a drive groove on the tool changer. It also ensures accurate indexing and self-locking of the tool magazine cover in harsh environments. The protective door automatically closes after the tool is retracted, and the brush plate scrapes away residual chips on the side of the tool bar to prevent debris from entering the tool magazine. The mechanical cooperation between the crescent-shaped positioning plate and the arc-shaped positioning groove can complete the positioning without sensors, and has strong anti-interference ability, thereby greatly improving the reliability, sealing performance, and continuity of automated tool changing of the tool holder. Attached Figure Description

[0021] For ease of explanation, the present invention will be described in detail below with reference to specific embodiments and accompanying drawings.

[0022] Figure 1 The overall three-dimensional structure of the present invention Figure 1 ;

[0023] Figure 2 The overall three-dimensional structure of the present invention Figure 2 ;

[0024] Figure 3 For the present invention Figure 1 A sectional view;

[0025] Figure 4 For the present invention Figure 3 A partial structural diagram;

[0026] Figure 5 For the present invention Figure 2 A partial structural sectional view;

[0027] Figure 6 For the present invention Figure 4 A 3D view of the blade magazine cover;

[0028] Figure 7 For the present invention Figure 4 A 3D view of the drive turntable;

[0029] Figure 8 For the present invention Figure 4 A 3D view of the cleaning roller;

[0030] Figure 9 For the present invention Figure 4 A 3D view of the follower wheel;

[0031] Figure 10 For the present invention Figure 5 A three-dimensional diagram of the driven gear and the small sprocket;

[0032] Figure 11 For the present invention Figure 4 Enlarged view of the structure of part A.

[0033] In the diagram: 1. Composite base; 2. Chamber; 3. Rolling cleaning mechanism; 4. Auxiliary rinsing assembly; 5. Blade changing mechanism; 6. Positioning drive assembly; 7. Anti-scratching assembly; 31. Follower wheel; 32. Cleaning roller; 33. Damping sleeve; 34. Felt sleeve; 35. Drive gear; 36. Fixed shaft; 37. Driven gear; 38. Small sprocket; 39. Large sprocket; 30. Chain; 301. Drive cover; 41. Miniature plunger pump; 42. Coolant pipe; 43. Nozzle; 44. Support frame; 45. Treasure 51. Tower head; 52. Tool changer; 53. Tool magazine cover; 54. Double rod guide frame; 55. Reset plate; 56. Tool holder; 57. Tool body; 58. Long spring; 59. U-shaped frame; 50. Electric telescopic rod; 61. Pressure sensor plate; 62. Drive positioning wheel; 63. Drive turntable; 64. Crescent positioning plate; 65. Drive shaft; 66. Wheel; 67. Crank handle; 68. Drive slot; 79. Arc-shaped positioning slot; 70. I-beam hinge frame; 71. Protective door; 72. Pressure torsion spring; 73. Brush plate. Detailed Implementation

[0034] like Figure 1-11 As shown, the specific implementation adopts the following technical solution:

[0035] Example:

[0036] A composite tool holder structure capable of quickly switching cutting tools includes a composite base 1, a chamber 2 fixedly mounted on the upper end of the composite base 1, a rolling cleaning mechanism 3 inside the chamber 2, the rolling cleaning mechanism 3 including a follower wheel 31 and a cleaning roller 32, an auxiliary flushing component 4 on the chamber 2, and a protective scraping component 7 on the rolling cleaning mechanism 3. The follower wheel 31 and the cleaning roller 32 are mounted inside the chamber 2 via bearings. A tool changing mechanism 5 is provided on the composite base 1, and a positioning drive component 6 is provided on the tool changing mechanism 5. The tool changing mechanism 5 includes a tool changing disc 51 and a tool chamber cover 52. The tool changing disc 51 is mounted on the upper end of the composite base 1 via bearings.

[0037] The follower wheel 31 is fixedly fitted with a damping sleeve 33 on its outer side, and the cleaning roller 32 is fixedly fitted with a felt sleeve 34 on its outer side. The felt sleeve 34 has multiple cleaning grooves arranged in a ring on its outer side. The follower wheel 31 is located below the tool holder 55. After the tool holder 55 extends out of the tool magazine 52, it contacts the damping sleeve 33 on the outer side of the follower wheel 31 and drives the follower wheel 31 to rotate through the friction between the tool holder 55 and the damping sleeve 33. The same applies to the retraction process. At the same time, the follower wheel 31 drives the cleaning roller 32 to rotate through the transmission mechanism. During the rotation, the cleaning roller 32 can clean the cutting tool body 56 through the felt sleeve 34.

[0038] Among them, a drive gear 35 is fixedly installed on the outer side of the connecting shaft of the follower wheel 31, and a driven gear 37 is meshed on the upper end of the drive gear 35. A fixed shaft 36 is installed inside the driven gear 37 through a bearing. The fixed shaft 36 is fixedly connected to the chamber body 2. A small sprocket 38 is fixedly installed on the outer side of the driven gear 37. A large sprocket 39 is fixedly installed on the outer side of the connecting shaft of the cleaning roller 32. A chain 30 is meshed on the outer sides of the large sprocket 39 and the small sprocket 38. A drive cover 301 is fixedly installed on the outer side of the chamber body 2. The drive cover 301 can protect the gear and sprocket area and prevent debris from affecting the transmission.

[0039] The auxiliary rinsing component 4 includes a miniature plunger pump 41. The miniature plunger pump 41 is fixedly installed at the upper end of the chamber 2. A coolant pipe 42 is fixedly installed inside the output end of the miniature plunger pump 41. The coolant pipe 42 passes through the chamber 2. A nozzle 43 is fixedly installed at one end of the coolant pipe 42 inside the chamber 2. The nozzle of the nozzle 43 points to the tangential direction of the cleaning roller 32. A support frame 44 is fixedly installed on the outside of the coolant pipe 42. The support frame 44 is fixedly connected to the top of the inner side of the chamber 2. A pagoda head 45 is fixedly installed at the upper end of the inlet of the miniature plunger pump 41. The miniature plunger pump 41 can spray coolant onto the contact surface between the upper surface of the cutting tool body 56 and the felt sleeve 34 through the coolant pipe 42 and the nozzle 43, thereby rinsing and cooling the cutting tool body 56 at the same time.

[0040] The anti-scraping component 7 includes an I-beam hinge frame 71. Two pairs of symmetrically distributed I-beam hinge frames 71 are fixedly installed on the outer side of the outlet of the chamber 2. Each pair of I-beam hinge frames 71 is hinged to a protective door 72 on its outer side. The protective door 72 contacts the outer side of the outlet of the chamber 2. A brush plate 74 is fixedly installed on the inner side of the protective door 72. A pressure torsion spring 73 is provided on the outer side of the central rod of the I-beam hinge frame 71. One end of the pressure torsion spring 73 is fixedly connected to the protective door 72, and the other end of the pressure torsion spring 73 is fixedly connected to the chamber 2. The brush plate 74 on the inner side of the protective door 72 scrapes and cleans the side of the cutting tool body 56 during the retraction process to prevent debris from entering the interior of the tool chamber cover 52.

[0041] The tool changer 51 has a tool magazine cover 52 fixedly installed on its upper end. Multiple double-rod guide frames 53 arranged in a ring are also fixedly installed on the upper end of the tool changer 51. A reset plate 54 is slidably connected to the outer side of the two rods of each double-rod guide frame 53. A tool holder 55 is fixedly installed on the upper end of the reset plate 54. A cutting tool body 56 is bolted to the upper end of the tool holder 55. The tool holder 55 is slidably connected to the opening of the tool magazine cover 52. The double-rod guide frames 53 can guide the movement of the tool holder 55 and the cutting tool body 56 when they move.

[0042] The double-rod guide frame 53 has long springs 57 on the outer sides of its two rods. The double-rod guide frame 53 is fixedly connected to the inner wall of the tool magazine cover 52. One end of the long spring 57 is fixedly connected to the reset plate 54, and the other end of the long spring 57 is fixedly connected to the inner wall of the tool magazine cover 52. The long spring 57 can push the reset plate 54 with its elastic force to drive the tool holder 55 to retract into the tool magazine cover 52. A U-shaped frame 58 is fixedly installed in the middle of the upper end of the composite base 1. An electric telescopic rod 59 is fixedly installed inside the U-shaped frame 58. A pressure sensing plate 50 is fixedly installed at the telescopic end of the electric telescopic rod 59. The pressure sensing plate 50 is in contact with the tool holder 55 and is electrically connected to the micro plunger pump 41. When the pressure of the pressure sensing plate 50 changes, the micro plunger pump 41 starts.

[0043] The positioning drive assembly 6 includes a drive positioning wheel 61. The drive positioning wheel 61 is fixedly installed on the outer side of the upper connecting shaft of the tool magazine cover 52. A drive turntable 62 is installed inside the magazine body 2 via bearings. A crescent-shaped positioning disc 63 is fixedly installed on the upper end of the drive turntable 62. A drive shaft 64 is fixedly installed on the upper end of the drive turntable 62. Multiple arc-shaped positioning grooves 68 are provided on the outer side of the drive positioning wheel 61 in a ring. The arc surface of the crescent-shaped positioning disc 63 rotates in contact with the arc-shaped positioning grooves 68. After the drive shaft 64 disengages from the drive groove 67, the crescent-shaped positioning disc 63 can be rotated into the arc-shaped positioning groove 68 for drive positioning. Locking the wheel 61 allows for fixed-angle rotation and locking of the drive positioning wheel 61. A wheel 65 is fixedly mounted on the upper end of the connecting shaft of the drive turntable 62, and a crank handle 66 is fixedly mounted on the upper end of the wheel 65. The drive positioning wheel 61 has multiple annularly distributed drive grooves 67 inside. The diameter of the drive groove 67 contacts the diameter of the drive shaft 64. The opening of the drive groove 67 has a chamfered bevel. During the rotation of the drive turntable 62, the drive shaft 64 can slide into the drive groove 67. During the sliding and sliding out process, the drive positioning wheel 61 can be rotated by the drive shaft 64.

[0044] The usage state of the present invention is as follows: In the initial state, the tool holder 55 is located in the retracted position inside the tool magazine cover 52 under the elastic force of the long spring 57, and the protective door 72 is tightly attached to the outlet of the magazine body 2 under the action of the pressure torsion spring 73.

[0045] When a tool change is required, the target tool position is first rotated to the working axis by the positioning drive assembly 6. The drive turntable 62 is rotated by shaking the handle 66, and the drive shaft 64 at the upper end of the drive turntable 62 rotates accordingly. When the drive shaft 64 slides into the drive groove 67 on the drive positioning wheel 61, it drives the drive positioning wheel 61 and the tool magazine cover 52 and the tool changer 51 fixedly connected to it to rotate through a set angle. After the drive shaft 64 slides out of the drive groove 67, the arc surface of the crescent positioning plate 63 enters the arc surface positioning groove 68 of the drive positioning wheel 61 to achieve precise indexing and self-locking. After the tool magazine cover 52 is positioned, the electric telescopic rod 59 is activated. Its telescopic end pushes the pressure sensor plate 50 to move forward. The pressure sensor plate 50 contacts and pushes the tool holder 55 and the cutting tool body 56 to slide outward along the double rod guide frame 53.

[0046] When the tool holder 55 extends, it compresses the long spring 57 and pushes open the protective door 72 at the outlet of the chamber 2. During the outward movement of the tool body 56 or the tool holder 55, its surface contacts the damping sleeve 33 on the outer side of the follower wheel 31, driving the follower wheel 31 to rotate through friction. The follower wheel 31 drives the drive gear 35 on its connecting shaft to rotate. The drive gear 35 meshes with the driven gear 37, and the driven gear 37 drives the small sprocket 38 to rotate synchronously. The small sprocket 38 drives the large sprocket 39 through the chain 30. The large sprocket 39... Ultimately, the cleaning roller 32 rotates. During the rotation, the felt sleeve 34 on the outside of the cleaning roller 32 rolls and wipes the surface of the cutting tool body 56 to remove chips and oil stains in advance. At the same time, after the pressure sensor disk 50 detects the pressure change, it sends an electrical signal to the micro plunger pump 41. The micro plunger pump 41 starts and draws in coolant through the pagoda head 45. It is then sprayed out from the nozzle 43 through the coolant pipe 42. The nozzle 43 is pointed at the tangential contact area between the cleaning roller 32 and the cutting tool body 56 to rinse the felt sleeve 34 and assist in cleaning and cooling.

[0047] After processing, the electric telescopic rod 59 retracts in the opposite direction, the pressure sensor disk 50 disengages from the tool holder 55, and the tool holder 55, under the restoring force of the long spring 57, drives the cutting tool body 56 to retract along the double rod guide frame 53 and move into the tool magazine 52. During the retraction process, the cutting tool body 56 contacts the follower wheel 31 again. Since the transmission chain composed of the drive gear 35, driven gear 37, sprocket and chain 30 can transmit in both directions, the cleaning roller 32 continues to rotate, and the felt sleeve 34 performs a second rolling wipe on the cutting tool body 56 to remove newly attached chips. At the same time, the pressure reduction signal of the pressure sensor disk 50 can trigger the micro plunger pump 41 to start again, and perform a second rinsing through the nozzle 43 to ensure the tool surface is clean.

[0048] After the tool holder 55 is fully retracted into the tool magazine cover 52, the protective door 72 automatically rotates and closes under the action of the pressure torsion spring 73, tightly fitting the outlet of the magazine 2. During the closing process, the brush plate 74 on the inner side of the protective door 72 performs a final scraping and cleaning of the side of the cutting tool body 56, blocking any remaining tiny chips outside the magazine 2. Subsequently, the operation of the positioning drive assembly 6 is repeated, and the drive wheel 65 rotates the tool magazine cover 52 to the next tool position. The electric telescopic rod 59 extends again, realizing the rapid switching of the new tool. Throughout the tool changing process, the rolling cleaning mechanism 3, the auxiliary flushing assembly 4, and the protective scraping assembly 7 are linked in sequence, requiring no additional power source, ensuring the efficient, clean, and reliable operation of the tool holder.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope. All such changes and modifications fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A quick-change tool post structure of a compound tool post, characterized in that: The device includes a composite base (1), a chamber (2) is fixedly installed on the upper end of the composite base (1), a rolling cleaning mechanism (3) is provided inside the chamber (2), the rolling cleaning mechanism (3) includes a follower wheel (31) and a cleaning roller (32), an auxiliary rinsing component (4) is provided on the chamber (2), a protective scratch component (7) is provided on the rolling cleaning mechanism (3), the follower wheel (31) is installed inside the chamber (2) through a bearing, and the cleaning roller (32) is installed inside the chamber (2) through a bearing. The composite base (1) is provided with a tool changing mechanism (5), and the tool changing mechanism (5) is provided with a positioning drive assembly (6). The tool changing mechanism (5) includes a tool changing disc (51) and a tool magazine cover (52). The tool changing disc (51) is mounted on the upper end of the composite base (1) by a bearing.

2. The quick switchable turning tool composite tool holder structure according to claim 1, characterized in that: The outer side of the follower wheel (31) is fixedly fitted with a damping sleeve (33), and the outer side of the cleaning roller (32) is fixedly fitted with a felt sleeve (34). The outer side of the felt sleeve (34) has multiple cleaning grooves arranged in a ring.

3. The quick switchable turning tool composite tool holder structure according to claim 1, characterized in that: A drive gear (35) is fixedly installed on the outer side of the connecting shaft of the follower wheel (31). A driven gear (37) meshes with the upper end of the drive gear (35). A fixed shaft (36) is installed inside the driven gear (37) through a bearing. The fixed shaft (36) is fixedly connected to the chamber (2). A small sprocket (38) is fixedly installed on the outer side of the driven gear (37). A large sprocket (39) is fixedly installed on the outer side of the connecting shaft of the cleaning roller (32). A chain (30) meshes together on the outer sides of the large sprocket (39) and the small sprocket (38). A drive cover (301) is fixedly installed on the outer side of the chamber (2).

4. The quick switchable turning tool composite tool holder structure according to claim 1, characterized in that: The auxiliary rinsing assembly (4) includes a micro plunger pump (41). The micro plunger pump (41) is fixedly installed at the upper end of the chamber (2). A coolant pipe (42) is fixedly installed inside the output end of the micro plunger pump (41). The coolant pipe (42) passes through the chamber (2). A nozzle (43) is fixedly installed at one end of the coolant pipe (42) inside the chamber (2). The nozzle of the nozzle (43) points to the tangential direction of the cleaning roller (32). A support frame (44) is fixedly installed on the outside of the coolant pipe (42). The support frame (44) is fixedly connected to the top of the inner side of the chamber (2). A pagoda head (45) is fixedly installed at the upper end of the inlet of the micro plunger pump (41).

5. The quick switchable turning tool composite tool holder structure according to claim 1, characterized in that: The protective scratch assembly (7) includes an I-beam hinge frame (71). Two pairs of symmetrically distributed I-beam hinge frames (71) are fixedly installed on the outer side of the outlet of the compartment (2). A protective door (72) is hinged to the outer side of each pair of I-beam hinge frames (71). The protective door (72) contacts the outer side of the outlet of the compartment (2). A brush plate (74) is fixedly installed on the inner side of the protective door (72). A pressure torsion spring (73) is provided on the outer side of the central rod of the I-beam hinge frame (71). One end of the pressure torsion spring (73) is fixedly connected to the protective door (72), and the other end of the pressure torsion spring (73) is fixedly connected to the compartment (2).

6. The composite tool holder structure with rapid tool switching according to claim 1, characterized in that: The tool changer (51) is fixedly mounted with a tool magazine cover (52) at its upper end. Multiple double-rod guide frames (53) arranged in a ring are fixedly mounted on the upper end of the tool changer (51). A reset plate (54) is slidably connected to the outer side of the double rods of each double-rod guide frame (53). A tool holder (55) is fixedly mounted on the upper end of the reset plate (54). A turning tool body (56) is bolted to the upper end of the tool holder (55). The tool holder (55) is slidably connected to the opening of the tool magazine cover (52).

7. The composite tool holder structure with rapid tool switching according to claim 6, characterized in that: The two rods of the double-rod guide frame (53) are each provided with a long spring (57) on their outer sides. The double-rod guide frame (53) is fixedly connected to the inner wall of the tool magazine cover (52). One end of the long spring (57) is fixedly connected to the reset plate (54), and the other end of the long spring (57) is fixedly connected to the inner wall of the tool magazine cover (52).

8. The composite tool holder structure with rapid tool switching according to claim 6, characterized in that: A U-shaped frame (58) is fixedly installed at the upper middle part of the composite base (1). An electric telescopic rod (59) is fixedly installed inside the U-shaped frame (58). A pressure sensing disc (50) is fixedly installed at the telescopic end of the electric telescopic rod (59). The pressure sensing disc (50) is in contact with the tool holder (55).

9. The composite tool holder structure with rapid tool switching according to claim 1, characterized in that: The positioning drive assembly (6) includes a drive positioning wheel (61). The drive positioning wheel (61) is fixedly installed on the outer side of the upper connecting shaft of the tool magazine cover (52). The drive turntable (62) is installed inside the magazine body (2) through a bearing. A crescent positioning disk (63) is fixedly installed on the upper end of the drive turntable (62). A drive shaft (64) is fixedly installed on the upper end of the drive turntable (62). A plurality of arc-shaped positioning grooves (68) are provided on the outer side of the drive positioning wheel (61). The arc surface of the crescent positioning disk (63) is in rotational contact with the arc-shaped positioning grooves (68).

10. The composite tool holder structure with rapid tool switching according to claim 9, characterized in that: A wheel (65) is fixedly installed on the upper end of the connecting shaft of the drive turntable (62), and a crank handle (66) is fixedly installed on the upper end of the wheel (65). The drive positioning wheel (61) has multiple drive grooves (67) arranged in a ring inside. The diameter of the drive groove (67) is in contact with the diameter of the drive shaft (64), and the opening of the drive groove (67) is provided with a beveled bevel.

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