Multifunctional special-purpose numerical control machining lathe with anti-waste chip

Abstract

The application discloses a special multifunctional numerical control machining lathe capable of preventing waste chips, wherein two channels are arranged in an output shaft and used for driving a piston cylinder to stretch and retract and blowing off the waste chips; the stretching and retraction of the piston cylinder further drives the movement of a piston ring to realize pressure reduction and pressure increase of an air chamber to adjust air flow; in the machining process, stable air flow is provided to generate an air curtain to prevent the waste chips from falling to the inside and to cooperate with centrifugal force to achieve a slight blowing effect; after the machining is completed, the air flow generated by pressure increase can blow off the waste chips with high force; in addition, a conical head for guiding flow is provided, different directions are provided by using air flow change, and thus the conical head is combined with the required air curtain or groove bottom blowing in work to achieve the best effect.

Description

Technical Field

[0001] This invention relates to CNC machining lathes, and more particularly to a multi-functional special CNC machining lathe with chip-proof features. Background Technology

[0002] After the wheel rim is formed, its outer surface needs to be processed, such as milling and drilling of the outer ring. This process will generate waste chips. If gravity or natural centrifugal force is relied upon alone, the waste chips are easy to splash onto the machine tool spindle, guide rail or worktable, causing equipment wear and reduced accuracy. Moreover, drilling and other processing does not involve rotation, and the waste chips cannot be removed by centrifugal force. To solve this problem, the current common method is to use an external air pipe to blow the waste chips off manually after each processing.

[0003] In addition, existing rotary chucks (such as CN223684643U) use a pneumatic rotary device (air slip ring) to introduce the air source into the rotating body. However, the air blowing path design of this type of chuck is relatively simple, and it usually only provides a continuous and constant airflow.

[0004] Regarding chip removal performance: This constant airflow has obvious drawbacks: During the machining (clamping) stage, excessive airflow may interfere with the cutting fluid or cause energy waste, and it cannot form an effective low-pressure protective air curtain; During the material change (release) stage, the constant airflow often has insufficient pressure, making it difficult to blow away stubborn chips deposited in the chuck grooves; It lacks a mechanical structure that can automatically switch the air path mode (such as throttling / boosting) using the chuck's own movement (piston lifting), which leads to the need for additional solenoid valve control, increasing costs and failure rates. Summary of the Invention

[0005] In view of the problems mentioned in the background art, the technical problem to be solved by the present invention is to provide a multi-functional special CNC machining lathe that is free from waste chips.

[0006] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: A multi-functional special-purpose CNC machining lathe with chip prevention features includes a multi-axis lathe equipped with machining tools. A worktable is located below the tools, and a pneumatic chuck is mounted on the worktable. The pneumatic chuck includes: The disc body is circular and rotates on the machine base. It has a material collection trough and an internal installation space. Its outer diameter is larger than the diameter of the wheel rim machining position. The grippers are radially slidably disposed on the disc body and evenly distributed in a circular array, with the material collection trough located between two adjacent grippers; The drive motor is located below the worktable and serves as the power source; The output shaft is fixedly and sealed to the disc body, and its interior is equipped with a gas passage and an air blowing passage. The transmission assembly includes a piston cylinder and a connecting rod mechanism. The connecting rod mechanism connects the output end of the piston cylinder to each gripper via a hinge so that each gripper can slide radially on the disc when the piston rod extends or retracts. The piston cylinder is connected to a gas passage so that the piston rod can be driven to rise or fall through the gas passage. Pneumatic chucks also include: The air slip ring includes two, both of which are located at the output shaft. One is used to connect the gas passage and the pipeline, and the other is used to connect the blowing passage and the pipeline. The pipeline is used to supply gas to the gas passage and the blowing passage with stable pressure. A single piston ring or several circular pistons. When it is a single piston ring, the piston ring is disposed between the output shaft and the inner wall of the disc and it slides and seals with the output shaft and the inner wall of the disc to isolate the aforementioned air chamber below the piston ring. The air blowing channel communicates with the bottom side of the air chamber. The top of the piston ring is connected to the piston rod through a connecting rod, and the bottom of the piston ring is connected to an annular linkage valve core through a connecting rod. When it is a circular piston, the air chamber is multiple chambers in the disc. The circular piston is disposed in the air chamber and slides and seals with the side wall of the air chamber. The air blowing channel communicates with the bottom side of each air chamber. The top of the circular piston is connected to the piston rod through a connecting rod, and the bottom of the circular piston is connected to a lifting valve core through a connecting rod. The air blowing port comprises several groups, each group being located on the side wall of the air chamber and extending to the side wall of a collection trough. Each group has a first branch hole and a second branch hole on the air inlet side, which are opposite each other and merge into a main line hole on the exhaust side. The first branch hole is provided with a throttling orifice. When clamped, the piston ring and the annular linkage valve core move upward with the piston rod, opening the first branch hole and closing the second branch hole. When the clamp is released, the piston ring and the annular linkage valve core move downward with the piston rod, the piston ring closes the first branch hole, and the annular linkage valve core moves downward to release the closure of the second branch hole, allowing the airflow to be pressurized and ejected from the second branch hole.

[0007] Preferably, the outer end of the main bore is provided with an airflow regulating structure, which includes: A tapered hole, located at the outer end of the main bore; A conical head, located at a conical hole, with a post on one side; The mounting bracket has a socket, and the plug is movably positioned inside the socket. A spring, which is mounted on the insert and applies a spring force to the conical head toward the conical hole; When clamped, the airflow is stable and the conical head is in a stable state. The airflow forms a laminar air curtain at the chip collection groove to generate a stable blowing effect on the waste chips with less airflow. When released, the gas in the air chamber is compressed instantly, and the air intake switches to the second branch hole. At this time, a stronger air curtain is formed to blow off the remaining waste chips.

[0008] Preferably, the conical head is provided with an adjustment hole and the top of the adjustment hole has an inclined guide slope. The mounting bracket is provided with a guide rod, which extends into the adjustment hole and abuts against the guide slope. The insertion hole is a vertically extending slot, which allows the insertion post to have vertical movement space in the insertion hole. Both the conical hole and the top of the conical head are provided with beveled surfaces. When the machining is completed and the resetting stage is reached, the airflow increases and pushes the conical head outward while moving upward under the action of the guide rod and the guide slope. The two beveled surfaces abut against each other, and the airflow is guided to the bottom of the chip collection groove and the position of action moves outward.

[0009] Preferably, the outer edge of the conical head is provided with an arc-shaped guide flange, which is used to change the airflow direction.

[0010] Preferably, the diameter of the first branch hole is smaller than the diameter of the second branch hole.

[0011] Preferably, the upper part of the disc is provided with a slot for the sliding of the gripper, the gripping end of the gripper extends radially to the outside of the slot and the outer end of the gripper is provided with a stepped structure, the side wall of the stepped structure is an arc surface that fits with the wheel rim; when gripping, the gripping part of the gripper is located outside the slot and the slot extends outward with an arc top, the waste chips generated during processing are blocked by the wheel rim itself and fall from the arc top into the chip collection groove and are blown off or thrown off under the action of centrifugal force.

[0012] Preferably, the workbench surface is provided with a ring-shaped collection box for collecting blown-off waste, the collection box having a U-shaped opening and the outer wall of the opening being higher than the inner wall.

[0013] Compared with the prior art, the present invention has the following advantages: The present application sets two channels in the output shaft for driving the piston cylinder to extend and retract and for blowing off waste chips respectively. The extension and retraction of the piston cylinder drives the piston ring to move, thereby reducing and increasing the pressure of the air chamber to regulate the airflow. During the processing, a stable airflow is provided to generate an air curtain to prevent waste chips from falling inward and to achieve a slight blowing effect with the help of centrifugal force. After the processing is completed, the pressurized airflow can forcefully blow off the waste chips. In addition, a conical head for guiding the flow is provided, which uses the change of airflow to provide different guidance to combine with the air curtain or bottom blowing required for its operation to achieve the best effect. Attached Figure Description

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be regarded as a limitation on the scope of the present invention. In addition, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0015] Figure 1 This is the front view of this application; Figure 2 This is a perspective view of the present application; Figure 3 This is a three-dimensional view of the pneumatic chuck. Figure 4 This is a top view of the pneumatic chuck; Figure 5 for Figure 4 AA view; Figure 6 This is an exploded view of the pneumatic clamp. Figure 7 A three-dimensional view of the conical head; Figure 8 for Figure 5 Enlarged view of point A in the middle; In the diagram: 10, Output shaft; 20, Pneumatic chuck; 201, Disc body; 2011, Chip collection groove; 2012, Air chamber; 2013, First branch hole; 20131, Throttling orifice; 2014, Second branch hole; 202, Gripper; 30, Tool; 40, Air slip ring; 50, Piston cylinder; 501, Piston rod; 502, Connecting frame; 503, Linkage mechanism; 504, Circular piston; 505, Lifting valve core; 60, Airflow regulating structure; 601, Conical head; 6011, Adjusting hole; 60111, Guide slope; 602, Insert post; 603, Spring; 604, Mounting bracket; 6041, Slot hole; 605, Guide rod; 01, Worktable surface; 02, Gas passage; 03, Air blowing passage. Detailed Implementation

[0016] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0017] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures. Example

[0018] This embodiment mainly describes the title of a multi-functional special-purpose CNC machining lathe that prevents chipping, as follows: A multi-functional special-purpose CNC machining lathe that prevents chipping, such as Figure 1-3 As shown, a multi-axis lathe includes a machining tool 30, which can be a milling cutter or a drilling tool, etc. Machining includes a wheel rim rotation machining mode and a wheel rim stationary machining mode. A worktable 01 is provided below the tool 30, and a pneumatic chuck 20 is provided on the worktable 01. This embodiment uses an internal clamping mode. The pneumatic chuck 20 includes: The disc 201 is a circular structure that is rotatably mounted on the machine base. It has a material collection trough 2011, which is used for waste chip drop and prevents waste chips from moving from the top to the center of the clamping disc. It has an installation space inside, and its outer diameter is larger than the diameter of the wheel rim machining position. Here, the radius of the disc 201 is increased to serve as a primary waste chip receiving point, so that the minimum waste chip drop position is moved outward. It works in conjunction with the collection box described later. If a small diameter disc 201 is used, the waste chips may fall directly to the drive part and other structures below, which will have an impact. The grippers 202 are radially slidably disposed on the disc 201 and evenly distributed in a circular array. The material collection groove 2011 is located between two adjacent grippers 202 and is used to slide outward to clamp and fix the wheel rim. A drive motor is located below the worktable 01 and serves as a power source; The output shaft 10 is fixedly and sealed to the disc body 201. It has a gas passage 02 and a blowing passage 03 inside. The gas passage 02 is used to supply air to the piston cylinder 50, and the blowing passage 03 is used to supply air to the air chamber 2012 to blow off waste. Transmission components, such as Figure 5 and 6 As shown, it includes a piston cylinder 50 and a connecting rod mechanism 503. The connecting rod mechanism 503 connects the output end of the piston cylinder 50 to each gripper 202 by hinge so that when the piston rod 501 extends or retracts, it drives each gripper 202 to slide radially on the disc body 201. The piston cylinder 50 is connected to the gas passage 02 so as to drive the piston rod 501 to rise or fall through the gas passage 02. Specifically, a connecting frame 502 is provided on the piston rod 501. The connecting frame 502 is provided with a hinge seat. One end of the connecting rod mechanism 503 is hinged to the hinge seat, and the other end of the connecting rod mechanism 503 is hinged to the gripper 202. In addition, the connecting frame 502 is provided with a connecting claw. The connecting claw is used to connect with the piston ring or several circular pistons 504 so as to drive the two to rise or fall. The pneumatic chuck 20 also includes: The air slip ring 40 includes two and is located at the output shaft 10. One of them is used to connect the gas channel 02 and the pipeline, and the other is used to connect the blowing channel 03 and the pipeline. The pipeline is used to supply gas to the gas channel 02 and the blowing channel 03 with stable pressure. It should be noted that in conventional clamping plates, the pneumatic clamping plate 20 uses a single air slip ring 40 structure to supply air to the piston cylinder 50. This application adds a channel for blowing waste chips. A single piston ring or several circular pistons 504 are used. When a single piston ring is used, it is positioned between the output shaft 10 and the inner wall of the disc 201, and it slides and seals against the inner wall of the output shaft 10 and the disc 201 to isolate the aforementioned air chamber 2012 below the piston ring. The air blowing channel 03 communicates with the bottom of the air chamber 2012. The top of the piston ring is connected to the piston rod 501 via a connecting rod, and the bottom of the piston ring is connected to an annular linkage valve core via a connecting rod. When a circular piston 504 is used, the air chamber 2012 consists of multiple chambers within the disc 201. The circular piston 504 is positioned within the air chamber 2012 and slides and seals against the side wall of the air chamber 2012. The air blowing channel 03 communicates with the bottom of each air chamber 2012. The top of the circular piston 504 is connected to the piston rod 501 via a connecting rod, and the bottom of the circular piston 504 is connected to a lifting valve core 505 via a connecting rod. The number of chambers is the same as the number of chip collection grooves 2011. Figure 5 , 6 The design shown in Figure 8 is a circular piston 504; The air blowing port comprises several groups, each group being located on the side wall of the air chamber 2012 and extending to the side wall of a collection trough 2011. Each group has a first branch hole 2013 and a second branch hole 2014 on the air inlet side, which are vertically opposite each other. The two branch holes merge into a main hole on the exhaust side. The first branch hole 2013 is provided with a throttling orifice 20131. When clamped, the piston ring and the annular linkage valve core move upward with the piston rod 501, opening the first branch hole 2013 and closing the second branch hole 2014. When the clamp is released, the piston ring and the annular linkage valve core move downward with the piston rod 501. The piston ring closes the first branch hole 2013, and the annular linkage valve core moves downward to release the closure of the second branch hole 2014, allowing the airflow to be pressurized and ejected from the second branch hole 2014.

[0019] like Figure 7-8 As shown, an airflow regulating structure 60 is provided at the outer end of the main line hole. The airflow regulating structure 60 includes: A tapered hole, located at the outer end of the main bore; A conical head 601 is located at a conical hole, and a post 602 is provided on one side of it; Mounting bracket 604 is provided with a socket, and the insertion post 602 is movably disposed in the socket; Spring 603 is disposed on insert 602 and applies elastic force to tapered head 601 toward the tapered hole; During clamping, the airflow is stable and the conical head 601 is in a stable state. The airflow forms a laminar air curtain at the chip collection groove 2011 to achieve a stable blowing effect on the waste chips using a small amount of airflow. When released, the gas in the air chamber 2012 is instantly compressed, and the air intake switches to the second branch hole 2014. At this time, a stronger air curtain is formed to blow off the remaining waste chips. This solution further adds an airflow adjustment structure 60. Since the airflow magnitude is different at different stages in this application, when the direction of the airflow is adjusted by the conical head 601, the force applied by the airflow and the force applied by the spring 603 work together to adjust the final airflow direction. In the early stage, the airflow is small and the conical head 601 moves outward a small distance, forming a stable air curtain. In the later stage, the airflow is large and pushes the conical head 601 outward to form an outward sweeping wind.

[0020] like Figure 7 As shown, the conical head 601 is provided with an adjustment hole 6011 and the top of the adjustment hole 6011 has an inclined guide slope 60111. The guide slope 60111 can be set on two side walls to form a triangular structure and limit the conical head 601 to avoid rotation with the guide rod 605. The mounting bracket 604 is provided with a guide rod 605, which extends into the adjustment hole 6011 and abuts against the guide slope 60111. The insertion hole is a vertically extending slot 6041, which allows the insertion post 602 to have vertical movement space in the insertion hole. Both the conical hole and the top of the conical head 601 are provided with beveled surfaces. When the machining is completed and the resetting stage is reached, the airflow increases and pushes the conical head 601 to move outward. At the same time, under the action of the guide rod 605 and the guide slope 60111, it moves upward. The two beveled surfaces abut against each other, and the airflow is guided to the bottom surface of the chip collection groove 2011 and the position of action moves outward. This solution is further improved by setting a ramp on the top surface to maximize the use of the final pressurized airflow. This allows the conical head 601 to come into contact with the top during the pressurization stage, increasing the opening at the bottom. The airflow mainly blows from the bottom to remove stubborn debris. This cleaning is a powerful blowing process after a single processing cycle. Even if there is some oil residue on the collection trough 2011, making the debris relatively stubborn, it can still be blown off.

[0021] Preferably, the outer edge of the conical head 601 is provided with an arc-shaped guide flange, which is used to change the airflow direction. This design is used to change the airflow direction and prevent the root of the chip collection groove 2011 from being missed. Preferably, the root is set to a rounded corner with automatic sliding, which is even more effective. This design is not shown in the figure.

[0022] Preferably, the diameter of the first branch hole 2013 is smaller than the diameter of the second branch hole 2014. The small hole, in conjunction with the throttling hole 20131, saves gas and forms an air curtain to block the waste debris, while the large hole reduces resistance and allows the pressurized gas to be ejected, generating a greater impact force to blow the waste debris off.

[0023] Preferably, the disc body 201 has a slot for the sliding of the gripper 202. The gripping end of the gripper 202 extends radially to the outside of the slot, and the outer end of the gripper 202 has a stepped structure. The sidewall of the stepped structure is an arc surface that fits with the wheel rim. In this embodiment, the disc body 201 and the gripper 202 together form the step. When gripping, the gripping part of the gripper 202 is located outside the slot, and the slot extends outward with an arc top. The waste chips generated during processing are blocked by the wheel rim itself and fall from the arc top into the chip collection groove 2011, where they are blown off or thrown off under centrifugal force. Here, the sliding position of the gripper 202 is mainly set in an inward position, while the gripping position is relatively outward. Combined with the inner clamping mode, this prevents waste chips from falling into the slot.

[0024] Preferably, the workbench surface 01 is surrounded by a ring-shaped collection box for collecting blown-off debris. The collection box has a U-shaped opening, with the outer wall of the opening higher than the inner wall. The debris is collected by the collection box after it moves outward. The collection box is an external structure and is not shown in the figure.

[0025] The work process is as follows: Clamping Processing State (Protection Mode): When the piston rod 501 moves upward to clamp, it drives the piston ring and the annular linkage valve core to move upward synchronously. At this time, the piston ring opens the first branch hole 2013, while the annular linkage valve core closes the second branch hole 2014. Airflow can only enter the collection trough 2011 through the first branch hole 2013 with the throttling orifice 20131. Due to the throttling, the airflow forms a stable laminar air curtain, covering the collection trough 2011 with a small amount of air. This prevents fine waste generated during processing from being drawn into the chuck, and also prevents excessive airflow from interfering with the processing. Combined with the centrifugal force of its own rotation, the waste will basically fall off.

[0026] Release and unloading state (cleaning mode): When processing is completed and the piston rod 501 moves down to release the workpiece, it drives the piston ring and the annular linkage valve core to move down synchronously. At this time, the piston ring closes the first branch hole 2013, and at the same time, the annular linkage valve core moves down to release the blockage of the second branch hole 2014. The airflow is then ejected through the larger diameter second branch hole 2014. At this time, the gas in the air chamber 2012 is instantly compressed, forming a high-pressure boosted airflow, which is forcefully blown towards the collection trough 2011, completely blowing off the remaining waste. Under the action of the first air curtain, there will always be some waste residue. If the centrifugal force is weak at a low speed, or if there is oil on the surface of the equipment, the residue is generally more stubborn. At this time, the effect of strong blowing off is demonstrated.

[0027] Waste collection path: A slot is provided above the chuck for the jaws 202 to slide, and the slot extends outward with an arc-shaped apex. Waste chips generated during machining are blocked by the wheel rim itself and fall directly into the chip collection groove 2011 from the arc-shaped apex. Under the combined action of centrifugal force and the aforementioned air curtain / airflow, the waste chips are thrown out or blown down. A ring-shaped collection box is provided around the periphery of the worktable 01. The collection box has a U-shaped opening and its outer wall is higher than its inner wall, effectively collecting the blown-down waste chips and preventing secondary contamination of the machine tool. The arc-shaped apex is not shown in the attached drawing.

[0028] like Figure 5 As shown, the piston cylinder 50 uses a two-inlet, two-outlet air slip ring 40 to control the piston rise and fall of the piston cylinder 50, while the air blowing adopts a one-inlet, one-outlet structure and sets an annular space inside to divide the airflow into multiple to adapt to multiple air chambers 2012, thereby reducing the complexity of the air slip ring 40. When there is a single air chamber 2012, it is not necessary to divide the airflow into multiple. The attached figure shows the case of multiple air chambers 2012.

[0029] Furthermore, the first branch hole 2013 and the second branch hole 2014 are vertically opposite and staggered from the tip of the conical head 601. Since the top of the conical head 601 is provided with a beveled surface, the airflow in the early stage is concentrated at the top to form an air curtain to prevent waste chips from flying inward, while in the later stage it is concentrated at the bottom to blow the waste chips in the chip collection groove 2011 off.

[0030] In the description of this invention, it should be noted that the terms "upper," "lower," "front," "rear," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed when in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

Claims

1. A multi-functional special-purpose CNC machining lathe with chip prevention function, comprising a multi-axis lathe with machining tools, a worktable below the tools, and a pneumatic chuck on the worktable, the pneumatic chuck comprising: The disc body is circular and rotates on the machine base. It has a material collection trough and an internal installation space. Its outer diameter is larger than the diameter of the wheel rim machining position. The grippers are radially slidably disposed on the disc body and evenly distributed in a circular array, with the material collection trough located between two adjacent grippers; The drive motor is located below the worktable and serves as the power source; The output shaft is fixedly and sealed to the disc body, and its interior is equipped with a gas passage and an air blowing passage. The transmission assembly includes a piston cylinder and a connecting rod mechanism. The connecting rod mechanism connects the output end of the piston cylinder to each gripper via a hinge so that each gripper can slide radially on the disc when the piston rod extends or retracts. The piston cylinder is connected to a gas passage so that the piston rod can be driven to rise or fall through the gas passage. The pneumatic chuck is characterized by further comprising: The air slip ring includes two, both of which are located at the output shaft. One is used to connect the gas passage and the pipeline, and the other is used to connect the blowing passage and the pipeline. The pipeline is used to supply gas to the gas passage and the blowing passage with stable pressure. The air chamber is located inside the disk; A single piston ring or several circular pistons. When it is a single piston ring, the piston ring is disposed between the output shaft and the inner wall of the disc and it slides and seals with the output shaft and the inner wall of the disc to isolate the aforementioned air chamber below the piston ring. The air blowing channel communicates with the bottom side of the air chamber. The top of the piston ring is connected to the piston rod through a connecting rod, and the bottom of the piston ring is connected to an annular linkage valve core through a connecting rod. When it is a circular piston, the air chamber is multiple chambers in the disc. The circular piston is disposed in the air chamber and slides and seals with the side wall of the air chamber. The air blowing channel communicates with the bottom side of each air chamber. The top of the circular piston is connected to the piston rod through a connecting rod, and the bottom of the circular piston is connected to a lifting valve core through a connecting rod. The air blowing port comprises several groups, each group being located on the side wall of the air chamber and extending to the side wall of a collection trough. Each group has a first branch hole and a second branch hole on the air inlet side, which are opposite each other and merge into a main line hole on the exhaust side. The first branch hole is provided with a throttling orifice. When clamped, the piston ring and the annular linkage valve core move upward with the piston rod, opening the first branch hole and closing the second branch hole. When the clamp is released, the piston ring and the annular linkage valve core move downward with the piston rod, the piston ring closes the first branch hole, and the annular linkage valve core moves downward to release the closure of the second branch hole, allowing the airflow to be pressurized and ejected from the second branch hole.

2. The multi-functional special-purpose CNC machining lathe with chip-proof features according to claim 1, characterized in that, The outer end of the main channel is equipped with an airflow regulating structure, which includes: A tapered hole, located at the outer end of the main bore; A conical head, located at a conical hole, with a post on one side; The mounting bracket has a socket, and the plug is movably positioned inside the socket. A spring, which is mounted on the insert and applies a spring force to the conical head toward the conical hole; When clamped, the airflow is stable and the conical head is in a stable state. The airflow forms a laminar air curtain at the chip collection groove to generate a stable blowing effect on the waste chips with less airflow. When released, the gas in the air chamber is compressed instantly, and the air intake switches to the second branch hole. At this time, a stronger air curtain is formed to blow off the remaining waste chips.

3. The multi-functional special-purpose CNC machining lathe with chip-proof features according to claim 2, characterized in that, The conical head has an adjustment hole with an inclined guide slope at the top. The mounting bracket has a guide rod that extends into the adjustment hole and abuts against the guide slope. The insertion hole is a vertically extending slot, which allows the insertion post to have vertical movement space within the insertion hole. Both the conical hole and the top of the conical head have beveled surfaces. During the reset phase after machining, the airflow increases, pushing the conical head outward and simultaneously moving it upward under the action of the guide rod and the guide slope. The two beveled surfaces abut against each other, and the airflow is guided to the bottom of the chip collection groove, with the position of action moving outward.

4. The multi-functional special-purpose CNC machining lathe with chip-proof features according to claim 2, characterized in that, The outer edge of the cone-shaped head is provided with an arc-shaped guide flange, which is used to change the direction of airflow.

5. The multi-functional special-purpose CNC machining lathe with chip-proof features according to claim 1, characterized in that, The diameter of the first branch hole is smaller than the diameter of the second branch hole.

6. The multi-functional special-purpose CNC machining lathe with chip-proof features according to claim 1, characterized in that, The upper part of the disc is provided with a slot for the sliding of the gripper. The gripping end of the gripper extends radially to the outside of the slot and the outer end of the gripper is provided with a stepped structure. The side wall of the stepped structure is an arc surface that fits with the wheel rim. When gripping, the gripping part of the gripper is located outside the slot and the slot extends outward with an arc top. The waste chips generated during processing are blocked by the wheel rim itself and fall from the arc top into the chip collection groove and are blown off or thrown off under the action of centrifugal force.

7. A multi-functional special-purpose CNC machining lathe with chip-proof features according to claim 6, characterized in that, The workbench is surrounded by a ring-shaped collection box for collecting blown-off debris. The collection box has a U-shaped opening, and the outer wall of the opening is higher than the inner wall.

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