Chip removal device of numerical control lathe

Abstract

The utility model provides a chip removal device for a numerically controlled lathe, which belongs to the technical field of numerically controlled lathes and comprises a frame, a transmission wheel rotatably connected inside the frame, a driving motor mounted on one side of the frame, and an extension structure arranged between a receiving hopper and a blanking pipe and connected with the transmission wheel. The pushing structure comprises a guide rod fixed to one side of the interior of the rack, a synchronous frame rotationally connected to one side of the moving plate and a transmission assembly arranged on one side of the rack. According to the automatic material pushing device, the transmission wheel drives the crank to rotate through the bevel gear set, the crank drives the connecting frame to do reciprocating rectilinear motion, then the push shovel continuously pushes chippings falling on the edge of the conveying belt to the middle position of the conveying belt, and therefore the automatic material pushing function of the device is achieved; the conveying belt can prevent scraps from blocking advancing due to the fact that the scraps are clamped in edge gaps of the conveying belt, abrasion of the scraps to the edge of the conveying belt and transmission parts can be reduced, meanwhile, scrap scattering is reduced, and the production environment is kept clean and tidy.

Description

Technical Field

[0001] This utility model relates to the field of CNC lathe technology, specifically to a chip removal device for CNC lathes. Background Technology

[0002] With the development of CNC technology, the processing efficiency and metal cutting volume of machine tools have been greatly improved. If the chips generated by the machine tool during the processing are not cleaned in time, they will cover the workpiece or tool and hinder automatic processing. Therefore, chip removal devices are set up to remove chips from the processing area of ​​the machine tool, maintain the efficient and stable operation of the machine tool, and reduce manual intervention.

[0003] Chinese patent CN210938340U discloses a chip removal device for a CNC lathe, relating to the technical field of CNC lathes. The device includes a lathe body and a chain conveyor belt. One end of the chain conveyor belt extends into the lathe body and is located below the cutting position, while the other end extends out of the lathe body and is inclined upwards to form a lifting section. The chain conveyor belt includes multiple hinged chain plate units. A first baffle is fixedly installed on each chain plate unit perpendicular to its conveying direction. A cleaning device is externally mounted on the lathe body, comprising a cleaning bracket and a cleaning roller. The cleaning bracket is located on the side of the lifting section of the chain conveyor belt away from the lathe body. The cleaning roller is rotatably connected to the cleaning bracket, and a drive motor for driving the cleaning roller is fixedly connected to the cleaning bracket. A flexible brush is provided on the side of the cleaning roller, and the flexible brush contacts the conveying surface of the chain plate unit. This invention uses the cleaning roller to scrape off long, rolled chips from the chain conveyor belt, making cleaning convenient and simple.

[0004] The aforementioned patent still has the following shortcomings: During the process of the device discharging debris, the debris is prone to slide down due to the angle of the conveyor belt and the vibration generated during the operation of the conveyor belt, causing the debris to roll into the gap at the edge of the conveyor belt, damaging the edge of the conveyor belt, affecting the continuity and stability of chip removal, reducing chip removal efficiency, and increasing the running resistance of the conveyor belt, thus increasing the load on the motor. Utility Model Content

[0005] This invention provides a chip removal device for CNC lathes that solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0007] An embodiment of this utility model provides a chip removal device for a CNC lathe, including a frame and further comprising:

[0008] A drive wheel is rotatably connected to the inside of the frame. A drive motor is mounted on one side of the frame, and the output shaft end of the drive motor is connected to one of the drive wheels.

[0009] The discharge port is fixed inside one side of the frame;

[0010] A conveyor belt is fitted around the outside of the drive wheel, and push plates are installed on the outside of the conveyor belt.

[0011] A material discharge pipe is installed on one side of the top of the frame, and a movable pipe is slidably connected inside the material discharge pipe, and a receiving hopper is installed at the top of the movable pipe.

[0012] An extension structure, located between the receiving hopper and the discharge pipe, is used to raise the height of the receiving hopper;

[0013] The material pushing structure is located on one side inside the frame. The material pushing structure includes a guide rod fixed to one side inside the frame, a movable plate slidably connected to the outside of the guide rod, a connecting frame fixed to one side of the movable plate, a pusher mounted on the top of one side of the connecting frame, a synchronization frame rotatably connected to one side of the movable plate, and a transmission assembly located on one side of the frame.

[0014] Through the above technical solution, the drive motor starts and drives the transmission wheel to rotate, so that the conveyor belt starts to circulate. The chips generated by the CNC lathe are slid onto the conveyor belt through the receiving hopper and the discharge pipe. As the conveyor belt moves, it continuously pushes the chips toward the discharge port, gradually conveying the chips out of the chip removal device, thus completing the basic chip removal process from the machine tool to the outside of the device.

[0015] Furthermore, the transmission assembly includes a bevel gear set mounted on one side of one set of transmission wheels, a transmission shaft mounted on one side of the frame and connected to the bevel gear set, a crank fixed to the end of the transmission shaft, and a sliding sleeve mounted at the middle position of one set of connecting frames and slidably connected to the crank.

[0016] Through the above technical solution, the transmission wheel drives the crank to rotate through the bevel gear set, which in turn drives the connecting frame to make reciprocating linear motion, thereby causing the pusher to continuously push the debris that falls on the edge of the conveyor belt toward the middle of the conveyor belt.

[0017] Furthermore, the movable plate is provided in two sets, and the two sets of movable plates are symmetrically distributed on the vertical center line of the guide rod.

[0018] With the above technical solution, during operation, the pushers on both sides simultaneously gather the debris from the edge of the conveyor belt toward the center, avoiding the displacement and accumulation of debris caused by applying force on one side.

[0019] Furthermore, the bevel gear set extends into the interior of the frame and connects to one of the drive wheels, and the bevel gear set is connected to the crank via a drive shaft.

[0020] The above technical solution achieves the integration of chip removal drive and material pushing power, simplifies the structure, and reduces redundant power components.

[0021] Furthermore, the extension structure includes mounting plates fixed to both sides of the top end of the discharge pipe, a bidirectional lead screw rotatably connected to the top end of the mounting plates, a pulley mounted on one side of the bidirectional lead screw, a stepper motor mounted on the other side of one set of bidirectional lead screws, a moving block threadedly connected to the outside of the bidirectional lead screw, and a pusher rotatably connected to the top of the moving block and rotatably connected to the receiving hopper.

[0022] The above technical solution uses a stepper motor to drive a bidirectional lead screw to rotate, which in turn causes the moving block to push the pusher frame to move, thereby pushing the receiving hopper to rise or fall.

[0023] Furthermore, the pulleys are connected by a drive belt, and the threads on both sides of the outer surface of the bidirectional lead screw are in opposite directions.

[0024] Through the above technical solution, by using the reverse thread design on both sides of the bidirectional lead screw and the pulley linked by the transmission belt, it can synchronously drive the four sets of moving blocks on both sides to move precisely in opposite directions, thereby driving the pusher frame to smoothly push and pull the receiving hopper, achieving stepless and stable height adjustment.

[0025] The above-described solution of this utility model has at least the following beneficial effects:

[0026] This invention utilizes a transmission wheel that drives a crank to rotate via a bevel gear set. The crank then drives a connecting frame in a reciprocating linear motion, which in turn pushes the scraper that falls on the edge of the conveyor belt towards the center of the conveyor belt. This achieves the automatic material pushing function of the device, preventing scrap from getting stuck in the gaps at the edge of the conveyor belt and hindering its movement. It also reduces wear on the edge of the conveyor belt and transmission components caused by scrap, while minimizing scrap scattering and maintaining a clean production environment.

[0027] This invention uses a stepper motor to drive a bidirectional lead screw to rotate, which in turn causes a moving block to push a pusher frame to move, thereby pushing the receiving hopper to rise or fall. This achieves the automatic lifting function of the device, adapting to the different chip outlet heights of various CNC machine tools, enabling precise docking with the machine tool and preventing chip spillage. Attached Figure Description

[0028] Figure 1 This is one of the structural schematic diagrams of this utility model;

[0029] Figure 2 This is the second schematic diagram of the structure of this utility model;

[0030] Figure 3 Provided by this utility model Figure 1 Enlarged cross-sectional view of a portion of point A in the middle section;

[0031] Figure 4 A three-dimensional structural diagram of the pusher structure provided by this utility model.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Frame; 2. Pushing structure; 201. Push shovel; 202. Synchronizing frame; 203. Guide rod; 204. Moving plate; 205. Sliding sleeve; 206. Bevel gear set; 207. Crank; 208. Connecting frame; 209. Drive shaft; 3. Drop pipe; 4. Extension structure; 401. Mounting plate; 402. Moving block; 403. Stepper motor; 404. Push frame; 405. Double-acting lead screw; 406. Pulley; 5. Receiving hopper; 6. Conveyor belt; 7. Push plate; 8. Drive motor; 9. Discharge port; 10. Moving pipe; 11. Drive wheel. Detailed Implementation

[0034] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0035] like Figures 1 to 4 As shown, an embodiment of this utility model provides a chip removal device for a CNC lathe, including a frame 1, and further comprising:

[0036] The transmission wheel 11 is rotatably connected to the inside of the frame 1. A drive motor 8 is installed on one side of the frame 1. The output shaft end of the drive motor 8 is connected to one of the transmission wheels 11.

[0037] Discharge port 9 is fixed inside one side of the frame 1;

[0038] The conveyor belt 6 is sleeved on the outside of the drive wheel 11, and push plates 7 are installed on the outside of the conveyor belt 6.

[0039] The material discharge pipe 3 is installed on one side of the top of the frame 1, and the inside of the material discharge pipe 3 is slidably connected to the moving pipe 10, and the top of the moving pipe 10 is equipped with a receiving hopper 5.

[0040] The extension structure 4 is set between the receiving hopper 5 and the discharge pipe 3 to raise the height of the receiving hopper 5.

[0041] The material pushing structure 2 is located inside the frame 1 on one side. The material pushing structure 2 includes a guide rod 203 fixed inside the frame 1, a movable plate 204 slidably connected to the outside of the guide rod 203, a connecting frame 208 fixed to one side of the movable plate 204, a pusher 201 installed at the top of one side of the connecting frame 208, a synchronization frame 202 rotatably connected to one side of the movable plate 204, and a transmission assembly located on one side of the frame 1.

[0042] In this embodiment of the utility model, the drive motor 8 starts and drives the transmission wheel 11 connected to it to rotate. Then, driven by the transmission wheel 11, the conveyor belt 6 starts to circulate. The chips generated by the CNC lathe fall into the discharge pipe 3 through the receiving hopper 5, and then slide onto the conveyor belt 6. As the conveyor belt 6 moves, it continuously pushes the chips toward the discharge port 9, gradually conveying the chips out of the chip removal device, completing the basic chip removal process from the machine tool to the outside of the device.

[0043] like Figure 4 As shown, the transmission assembly includes a bevel gear set 206 mounted on one side of one set of transmission wheels 11, a transmission shaft 209 mounted on one side of the frame 1 and connected to the bevel gear set 206, a crank 207 fixed to the end of the transmission shaft 209, and a sliding sleeve 205 mounted at the middle of one set of connecting frames 208 and slidably connected to the crank 207. Two sets of moving plates 204 are provided, and the two sets of moving plates 204 are symmetrically distributed on the vertical center line of the guide rod 203. The bevel gear set 206 extends into the interior of the frame 1 and is connected to one set of transmission wheels 11. The bevel gear set 206 is connected to the crank 207 through the transmission shaft 209.

[0044] In this embodiment of the present invention, during the operation of the conveyor belt 6, the transmission wheel 11 rotates, driving the bevel gear set 206 on its side to rotate synchronously. At the same time, the bevel gear set 206 transmits power to the crank 207 through the transmission shaft 209, causing the crank 207 to perform circular motion. The crank 207 slides in the sliding sleeve 205, driving the connecting frame 208 to perform reciprocating linear motion. Simultaneously, the connecting frame 208 drives the moving plate 204 and the pusher 201 on one side to move. The two sets of moving plates 204 on the left and right sides are connected by the synchronous frame 202, so that the moving plates 204 on the left and right sides can perform reciprocating motion synchronously, thereby causing the pushers 201 on both sides to perform reciprocating linear motion. During the movement of the pusher 201, the debris falling on the edge of the conveyor belt 6 is continuously pushed towards the middle of the conveyor belt 6, so that the debris is concentrated in the effective working area of ​​the conveyor belt 6, reducing the accumulation and jamming of debris at the edge.

[0045] like Figure 3 As shown, the extension structure 4 includes mounting plates 401 fixed to both sides of the top end of the feed pipe 3, a bidirectional lead screw 405 rotatably connected to the top end of the mounting plate 401, a pulley 406 installed on one side of the bidirectional lead screw 405, a stepper motor 403 installed on the other side of one set of bidirectional lead screws 405, a moving block 402 threadedly connected to the outside of the bidirectional lead screw 405, and a pusher 404 rotatably connected to the top end of the moving block 402 and rotatably connected to the receiving hopper 5. The pulleys 406 are connected to each other by a transmission belt, and the threads on both sides of the outer surface of the bidirectional lead screw 405 are in opposite directions.

[0046] In this embodiment of the utility model, the stepper motor 403 drives the bidirectional lead screw 405 connected to it to rotate. Since the threads on both sides of the outer surface of the bidirectional lead screw 405 are opposite, during the rotation of the bidirectional lead screw 405, the two moving blocks 402 move in opposite directions along the bidirectional lead screw 405. At the same time, as the moving blocks 402 move, the angle of the pusher 404 changes, thereby pushing the receiving hopper 5 to rise or fall. The pulleys 406 are connected by a transmission belt to realize the synchronous rotation of the bidirectional lead screws 405 on both sides, ensuring that the receiving hopper 5 is raised or lowered synchronously on both sides.

[0047] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A chip removal device for a numerically controlled lathe comprising a frame (1), characterized in that, Also includes: The transmission wheel (11) is rotatably connected to the inside of the frame (1). A drive motor (8) is installed on one side of the frame (1). The output shaft end of the drive motor (8) is connected to one of the transmission wheels (11). The discharge port (9) is fixed inside one side of the frame (1); The conveyor belt (6) is sleeved on the outside of the drive wheel (11), and push plates (7) are installed on the outside of the conveyor belt (6). The material discharge pipe (3) is installed on one side of the top of the frame (1), and the material discharge pipe (3) is slidably connected to the inside of the material discharge pipe (3), and the top of the moving pipe (10) is equipped with a receiving hopper (5). An extension structure (4) is provided between the receiving hopper (5) and the discharge pipe (3) to raise the height of the receiving hopper (5); The material pushing structure (2) is located on one side inside the frame (1). The material pushing structure (2) includes a guide rod (203) fixed on one side inside the frame (1), a movable plate (204) slidably connected to the outside of the guide rod (203), a connecting frame (208) fixed on one side of the movable plate (204), a pusher (201) installed on the top of one side of the connecting frame (208), a synchronization frame (202) rotatably connected to one side of the movable plate (204), and a transmission assembly located on one side of the frame (1).

2. A chip removal device for a numerically controlled lathe according to claim 1, characterized in that The transmission assembly includes a bevel gear set (206) mounted on one side of one of the transmission wheels (11), a transmission shaft (209) mounted on one side of the frame (1) and connected to the bevel gear set (206), a crank (207) fixed to the end of the transmission shaft (209), and a sliding sleeve (205) mounted at the middle of one of the connecting frames (208) and slidably connected to the crank (207).

3. A chip removal device for a numerically controlled lathe according to claim 2, characterized in that The movable plate (204) is provided in two sets, and the two sets of movable plates (204) are symmetrically distributed on the vertical center line of the guide rod (203).

4. A chip removal device for a numerically controlled lathe according to claim 2, characterized in that The bevel gear set (206) extends into the interior of the frame (1) and is connected to one of the drive wheels (11). The bevel gear set (206) is connected to the crank (207) via the drive shaft (209).

5. A chip removal device for a numerically controlled lathe according to claim 1, characterized in that The extension structure (4) includes mounting plates (401) fixed on both sides of the top end of the feed pipe (3), a bidirectional lead screw (405) rotatably connected to the top end of the mounting plate (401), a pulley (406) installed on one side of the bidirectional lead screw (405), a stepper motor (403) installed on the other side of one set of bidirectional lead screws (405), a moving block (402) threadedly connected to the outside of the bidirectional lead screw (405), and a pusher (404) rotatably connected to the top end of the moving block (402) and rotatably connected to the receiving hopper (5).

6. A chip removal device for a numerically controlled lathe according to claim 5, characterized in that The pulleys (406) are connected by a transmission belt, and the threads on both sides of the outer surface of the bidirectional lead screw (405) are in opposite directions.

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